CAD Project Files

./20ma-connections: Diagram of the 20ma connections in 8i, 8L.
20ma
is a schematic of the various parts and their connections.
4915dec
is a drawing of DEC's 4915.
4915
is a more modern board similar to DEC's 4915.
./20ma-rs232: Board for TTY adapter box
loop-rs232
is a board to convert current loop to RS-232. It probably won't drive a TTY, though, as the loops are too low voltage.
./32k-8i: PDP-8/i Core replacement.
sboardnew
is an SRAM core replacement that uses simple paddle cards to hook into a PDP-8/i or PDP-12.
./32k-Omnibus: Omnibus 32K SRAM board
Lafferty1
is a drawing based on Steve Lafferty's prototype.
Lafferty1ab
is an "as built" version of Lafferty1, with the changes incorporated in the group buy.
Lafferty2
is a drawing with ideas about a follow-on to Lafferty1.
msc3102
is a drawing of the MSC3102 design.
Omnimem
is a simplified version using 74244 instead of 74125.
rtc
is a version of Lafferty1 with some thoughts about adding a clock circuit.
./BusCon: Bus Connector paddles for Negibus and Posibus
8j-merge
is a merge of the 34-pin and 40-pin paddles.
8j-merge2
is a merge of the 34-pin and 40-pin paddles, with various extras to make various cable ends.
BusConOld
is an early version based on the work of Charles Morris.
BusCon40
is an early incompatible version with better ground planes than BusConOld.
PosiBus
is a wacky idea with a molex connector.
BusCon
uses two 34-wire cables to carry Posibus, or just one for Negibus.
BusCon10
is BusCon again.
BusCon15
is BusCon again.
BusConPoly
is BusCon with Polygon fill.
tester
is another attempt at a backplane probe.
x-talk
is an attempt at a crosstalk measurement jig for Posibus cables.
BC08J
is essentially a BC08J paddle with a cheaper ribbon connector.
merge4
is four 8j-merge paddles on a single board.
proto
is four 8j-merge paddles simply panelized.
./BusStop: Bus Interconnect for Posibus
busstop
is a simple rack terminus for Posibus.
./chipfudge: Replacements for obsolete chips
AM27S13
is my board that uses a 27256 to replace the AM27S13 (but has trouble meeting the speed specifications).
./ConsoleEmu: Project with Henk Gooijen.
core+io1
is an early draft of a 6802 CPU core and some I/O latches (to drive lights from SIMH).
core+io2
is an early draft of the 6802+I/O board.
core+io3
is the 6802 board again, experimenting with form-factor and component placement.
core+io4
the bigger 6802 version again, with bypass caps added.
core1
splitting the 6802 board up -- this is the CPU core.
io1
splitting the 6802 board up -- this is the I/O stuff.
core+io5
another version of the combined core+io 6802 board.
core2
a newer version of core1.
io2
a newer version of io1.
core+io
is the last version of core+io.
io-ok
is a snapshot of the I/O board before io3.
io3
everything rearranged to get another pair of LS373 in.
core3
is a version of the core board that matches io3.
io-ol
is io3 with the Olimex scripts run to beef up the silkscreen.
core4
is another revision of the 6802 CPU core.
core5
is another revision of the 6802 CPU core.
core6
is another revision of the 6802 CPU core.
core-ol
is the core board with the Olimex silkscreen scripts run.
core
is the last version of the 6802 core board.
quadrature
is a simple quadrature clock.
adaptor
is a simple adaptor board to put a 6809 in an 6802 socket.
core09ss
is an early version of the 6809 core board, with the 6809 replacing the 6802 (essentially building in the adapter board).
09-09e
is an adapter board for using the 6809E in a 6809 socket.
core09
is an early 6809E based CPU core.
core09e2
is a later version of the 6809E core.
core09e3
is a later version of the 6809E core, with Olimex silkscreen scripts run.
io-ol2
is a version of the IO board to match the 6809E core, and with Olimex scripts run.
core-ol2
is the 6809E core, with Olimex scripts run.
corex
is a slightly different version of the 6809E core.
core09e
is the latest version of the 6809E CPU core.
corex2
is the latest version of the 6809E CPU core.
iognd
is the IO board, with a ground plane added on both sides.
core09gnd
is the 6809E core board, with a ground plane added on both sides.
io
is the latest version of the IO board.
iotester
is a slight modification of the IO board, folding in the hooks for the tester board.
./ConsoleEmu/FlipChip: FlipChip Test Jig based on core and i/o boards.
flipchip
is a design for a flipchip tester based on the core and IO boards.
proto
explores some ideas output interfacing to Rxxx modules.
./ConsoleEmuFDC: Floppy Controller for ConsoleEmu Project
core09gnd
is a copy of the 6809E CPU core, used as a starting point to get the board dimensions and connectors in the right place.
fdc
is my Eagle drawing of Henk's floppy disk controller prototype.
./DEC: Various stuff pertaining to DEC gear.
./DEC/8aPanel: PDP-8a Programmer's Panel
8235.sch
is a schematic for an approximation of the function of the unobtainium 8235 chip.
8235sub.sch
is a schematic for an approximation of the function of the unobtainium 8235 chip.
8235sub1.sch
is a schematic for an approximation of the function of the unobtainium 8235 chip.
8235sub2.sch
is a schematic for an approximation of the function of the unobtainium 8235 chip.
programmerconsole.sch
is a schematic (before board layout) of an early draft of board1.
programmerconsolebrd2.sch
is a schematic (before board layout) of an early draft of board1.
try1
is an early draft (05/26/2005) of board1 (the front-side board).
try2
is an early draft (05/27/2005) of board2 (the back-side board).
cut
is the stuff cut from board 1 and pasted to start board2, to ensure size and alignment match up. oboard2 is a checkpoint of an old version (06/02/2005) of board2.
Progpanl.fpd
is a Front Panel Express drawing of the Programmer's Panel artwork.
nosilkboth.brd
is both boards panelized, which is how the prototypes were ordered. This version has not had the silkscreen scripts run.
both.brd
is both boards panelized, which is how the prototypes were ordered. This version has had the silkscreen scripts run.
board1-0
is a snapshot of revision 0 of board1.
board2-0
is a snapshot of revision 0 of board2.
board1corrected
is board1 with the corrections to make DEC's schematics work.
board2corrected
is board2 with the corrections to make DEC's schematics work. (Has a consistency problem.)
board2eco
is board2 with the ECO's applied to make it work. (Has a consistency problem which highlights the ECOs.)
board1
is the latest drawing of board 1 (front) of the 8/A front panel replacement.
board2
is the latest drawing of board 2 (back) of the 8/A front panel replacement.
./DEC/Axxx: Axxx Modules
./DEC/Axxx/A100: Multiplexor Switch
./DEC/Axxx/A103: Multiplexor Switch
./DEC/Axxx/A121: Multiplexor Switch
./DEC/Axxx/A124: 4 Input Multiplexer Switch
./DEC/Axxx/A130: Multiplexor
./DEC/Axxx/A131: Multiplexer
./DEC/Axxx/A133: Analog Switch
./DEC/Axxx/A163: Multiplexer and Amplifier
./DEC/Axxx/A200: Operational Amplifier
./DEC/Axxx/A202: Two Analog Preamplifiers
./DEC/Axxx/A214: 2 Analog Amplifiers
./DEC/Axxx/A215: Analog Buffer
./DEC/Axxx/A222: Selectable Gain Amplifier
./DEC/Axxx/A225: Deflection Amplifier
./DEC/Axxx/A400: Sample and Hold Amplifier
./DEC/Axxx/A401: Sample and Hold
./DEC/Axxx/A404: Sample and Hold
./DEC/Axxx/A405: Sample and Hold Amplifier
./DEC/Axxx/A502: Difference Amplifier
A502D
is a drawing of DEC's A502D.
A502X
is a 'modernized' version of the A502.
./DEC/Axxx/A601: 3 Bit DAC
A601E
is a drawing of DEC's A601E.
A601X
is a 'modernized' version of the A601.
./DEC/Axxx/A604: 2-bit D-A Converter
A604E
is a drawing of DEC's A604E.
A604X
is a 'modernized' version of the A604.
./DEC/Axxx/A605: 2-bit D-A Converter
./DEC/Axxx/A606: D-A Converter
./DEC/Axxx/A607: 10-bit D/A Converter, Single Buffered
./DEC/Axxx/A612: D/A Converter, Double
./DEC/Axxx/A614: 12 Bit bipolar D/A Converter, Double Long
./DEC/Axxx/A615: D/A Converter
./DEC/Axxx/A701: Reference Supply
./DEC/Axxx/A702: Reference Supply (-10V), double
A702B
is a drawing of DEC's A702B.
A702X
is a 'modernized' version of the A702.
./DEC/Axxx/A704: Reference Supply, Double
A704E
is a drawing of DEC's A704E.
A704X
is a 'modernized' version of the A704.
./DEC/Axxx/A706: Power Supply for A202
./DEC/Axxx/A708: Dual Voltage Regulator
./DEC/Axxx/A801: !0-bit A/D Converter
./DEC/Axxx/A811: 10-bit A/D Converter
./DEC/Axxx/A860: A/D Converter, Double
./DEC/Axxx/A877: 13-bit A/D Converter
./DEC/Axxx/A990: Operational Amplifier
./DEC/Axxx/A992: Operational Amplifier
./DEC/BM812i: Omnibus Memory adapter for PDP-8/i and PDP-12
proto
is a version od the bm812i board scaled down to a few sockets, to make ordering a prototype cheaper.
bm812i
is a version of DEC's BM812i with extra space between the connector blocks.
singleboard
is an implementation designed to fit into a single slot in a standard Omnibus backplane.
sboardnew
is a newer version of singleboard, using 74S240 instead of 74H40 to drive the bus.
bm812inl
is a version of the BM812i board without the extra space around the connector blocks. (It needs to be checked against the chassis to see if it has the needed clearances.)
./DEC/buscon: Negibus/Posibus Connectors
BusCon
is a version of DEC's M90x and W0x1 connector paddles, (based on the work from the BusCon project).
./DEC/Bxxx: Bxxx Modules
./DEC/Bxxx/B104: 4 Inverters, 3 Loads
B104B
is a drawing of DEC's B104B.
B104X
is a 'modernized' B104.
./DEC/Bxxx/B105: 5 Inverters, 5 Loads
B105B
is a drawing of DEC's B105B.
B105D
is a drawing of DEC's B105D.
B105X
is a 'modernized' B105.
./DEC/Bxxx/B113: 4 2-Input Negative NAND Gages, 3 Loads
./DEC/Bxxx/B115: 3 3-Input Negative NAND Gages, 3 Loads
B115A
is a drawing of DEC's B115A.
B115B
is a drawing of DEC's B115B.
B115X
is a 'modernized' B115.
./DEC/Bxxx/B117: 2 5-Input Negative NAND Gates
./DEC/Bxxx/B123: 4 2-Input OC NAND Gates
./DEC/Bxxx/B124: 3 3-Input OC NOR Gates
./DEC/Bxxx/B130: 4 3-Input ANDs ORed, both outputs, Parity for 3 Bits
B130B
is a drawing of DEC's B130B.
B130X
is a 'modernized' B130.
./DEC/Bxxx/B133: 2 mA equivalient to B113
./DEC/Bxxx/B134: 4 2-Input Positive AND Gates, 3 Loads, 2mA
./DEC/Bxxx/B135: 2 mA equvalent to B115
./DEC/Bxxx/B136: 3 mA equivalent to B134
./DEC/Bxxx/B137: 2 mA equivalent to B117
./DEC/Bxxx/B138: PDP10 Adder (B131 with added diode to kill the carry quickly)
./DEC/Bxxx/B141: 7 2-Input Gates, 2mA input equivalent to R141
./DEC/Bxxx/B142: Diode Gate, B141 with 10mA Loads on inputs F, J, L, N, R, T, V, for PDP8
B142A
is a drawing of DEC's B142A.
B142X
is a 'modernized' B142.
./DEC/Bxxx/B152: Binary to Octal Decoder, R151 with higher fan-in & no clamp loads & no emitter gating
./DEC/Bxxx/B155: Half Binary to Octal Decoder
./DEC/Bxxx/B156: 2mA equivalent to B155
./DEC/Bxxx/B163: 6 2-Input Gates, 1 Paired Common Input, 2mA equivalent of R123
B163D
is a drawing of DEC's B163D.
B163X
is a 'modernized' B163.
./DEC/Bxxx/B165: 2mA Diode equivalent of B105
./DEC/Bxxx/B166: Counting Gate for SC Adder of PDP10
./DEC/Bxxx/B167: 8 2-Input NANDs ORed to 4 Outputs with 2 Enable Inputs, 2x4
./DEC/Bxxx/B168: 4 3-Input NANDs ORed to 3 Outputs with 3 Enable Inputs, 3x3
./DEC/Bxxx/B169: Diode Gate Equivalent to B129, PDP9, 8 2-Input NANDs ORed to 2 Outputs, 4 Enable Inputs, 4x2
./DEC/Bxxx/B171: 6 Sets of 2-Input ANDs ORed, both polarities out, PDP7
./DEC/Bxxx/B172: Faster B171, 2mA Fan-In
./DEC/Bxxx/B173: 14 Input Negative NAND Gate with one input preceded by a 10 Input Positive NAND, ME10
./DEC/Bxxx/B198: Protection Comparator, PDP10 Memory, 0 & -3V in & out, Compares 2 8-bit Words
./DEC/Bxxx/B199: FM Address Decoder for B250 IC's, double
./DEC/Bxxx/B200: Flip Flop
./DEC/Bxxx/B201: Flip Flop
./DEC/Bxxx/B204: 4 Flip-flops
B204B
is a drawing of DEC's B204B.
B204X
is a 'modernized' B204.
./DEC/Bxxx/B211: Flip-flop, Buffered, No Delay
./DEC/Bxxx/B212: Dual RS Flip-flop, PDP10, Bus Driver Output, Delayed & not Delayed RS Inputs
./DEC/Bxxx/B213: PDP9 Flip-flop, Single Input Jam, no Delay
./DEC/Bxxx/B214: 4 Flip-flops, B204 made out of 3 mA Gates
./DEC/Bxxx/B250: Flip-flop Memory, PDP10, Fairchild IC's, 8x12 bits/card, double
./DEC/Bxxx/B301: 10 MC One Shot
B301B
is a drawing of DEC's B301B.
./DEC/Bxxx/B310: 4 Delay Lines, double
./DEC/Bxxx/B311: Tapped Delay Line, 200 ns, 25 ns steps, Emitter Follower Input
./DEC/Bxxx/B312: Delay Line, B311 Continuously Variable, Diode Input, PDP10
./DEC/Bxxx/B360: Screwdriver Delay Line + Pulse Amp, 200-250 ns max
B360C
is a drawing of DEC's B360C.
B360D
is a drawing of DEC's B360D.
./DEC/Bxxx/B401: Variable Clock
./DEC/Bxxx/B405: Crystal Clock, 2 to 10 MC
./DEC/Bxxx/B410: Voltage Controlled Clock, 1-10 MC, 40 to 100 ns negative pulses, potentiometer adjustment
./DEC/Bxxx/B602: Dual 10 MC Pulse Amplifier
B602A
is a drawing of DEC's B602A.
./DEC/Bxxx/B611: Dual Pulse Amplifier, 25 ns, PDP10
./DEC/Bxxx/B620: Dual Carry Pulse Amplifier
./DEC/Bxxx/B681: 4 Power Inverters
./DEC/Bxxx/B683: 3 Bus Drivers, OR output, 50 ohm load, 0 -3V
./DEC/Bxxx/B684: 2 Bus Drivers, like 6684
B684C
is a drawing of DEC's B684C.
B684X
is a 'modernized' B684.
./DEC/Bxxx/B685: 3 Diode Gate Drivers, 2 circuits, 80 mA at ground, 8 mA at -3V, PDP10
./DEC/DM01: Data Break Multiplexor
DM04r
is an aborted attempt to think about doing a DMA multiplexer from scratch.
DM01
is DEC's DM01, done up as a board in Eagle.
DM01x2
is DEC's DM01, scaled down for just 2 devices.
DM01eco
is DEC's DM01, with a TechTip fix added.
DM04mux
is another aborted early DM04 attempt.
DM04ttl
is my design for a DMA multiplexer similar to the DM04, based on DEC's DM01.
./DEC/DouglasElectronics: Various Eagle approximations of boards sold by Douglas Electronics.
5-de-7
is a drawing of the 5-de-7.
10-de-77
is a drawing of the 10-de-77.
11-de-7
is a drawing of the 11-de-7.
18-de-77
is a drawing of the 18-de-77.
21-de-7
is a drawing of the 21-de-7.
21-de-77
is a drawing of the 21-de-77.
26-de-8
is a drawing of the 26-de-8.
26-de-8x
is a drawing of the 26-de-8 done with more mordern components.
./DEC/DW08A: Posibus to Negibus Converter
dw08a2s
is a two-sided board based on DEC's DW08A Posibus Converter backplane.
dw08aholes
is a version of dw08a2s with un-needed cutout holes, and only 6 mil traces (too thin).
dw08a
is dw08aholes with the power traces beefed up, and is the version that matches the prototypes. It has a mechanical interference fit at the right edge.
dw08aRev2
is a version of the dw08a backplane with the interference fit fixed, and the un-needed holes removed.
dw08aRev3
is a version of the dw08a backplane that fixes another interference fit, having to do with the backplane being more than 3U tall.
dw08a4lyr
is a four layer version, with all the traces beefed up.
./DEC/DW08Bx: Negibus to Posibus Converter
dw08a
is a version of the DW08A Posibus to Negibus Converter backplane, for reference.
dw08b
is a drawing that approximates DEC's DW08B Negibus to Posibus Converter backplane. It is still an "x" version because the part/pin numbering has not been checked against the DEC version.
./DEC/flipchip: 6 pin flip-chip modules
./DEC/Gxxx: Gxxx modules
./DEC/Gxxx/G005: 4-input Sense Amp, PDP-6, 2us, double
./DEC/Gxxx/G007: Sense Amplifier
G007C
is a drawing of DEC's G007C.
G007X
is a 'modernized' G007.
./DEC/Gxxx/G008: Slice Control for G007 & G009
G008A
is a drawing of DEC's G008A.
G008X
is a 'modernized' G008.
./DEC/Gxxx/G010: Sense Amp Selector for PDP-9, 164, also used for G012
./DEC/Gxxx/G020: Sense Amp for 8/I, G021 etch, IC levels
./DEC/Gxxx/G021: Dual Sense Amp for 8/I, IC levels, also used for G020
G021old
is a drawing of DEC's G021 Core Sense Amplifier board, with the unobtainium MC1540 sense amp chips.
G021dec
is a drawing of DEC's G021 Core Sense Amplifier board, with the unobtainium MC1540 sense amp chips.
G021K
is a drawing of DEC's G021K Core Sense Amplifier board, with the layout based on the G021H.
G021K-E
is a drawing of DEC's G021 Core Sense Amplifier board, with the layout based on the G021E.
G021Kng
is a drawing of DEC's G021 Core Sense Amplifier board, with the H layout, but without the gold edge connector.
G021vrs
is a drawing of DEC's G021 Core Sense Amplifier board, with the unobtainium MC1540 sense amp chips.
sense-amp
is an approximation of the function of the MC1540, using LM148 op-amps.
G021-1
is a 12/04/2004 checkpoint of G021.
G021
is a version of the G021 with the MC1540 replaced with LM837.
./DEC/Gxxx/G022: 4-input Sense Amp for PDP-10, with cable, +6.2V, -6.2V
./DEC/Gxxx/G023: Master Slice Control for G022
./DEC/Gxxx/G050: 9 Track, 45 ips, Dual Gap Head Read Amplifier
./DEC/Gxxx/G060: Mag Tape Compressor, 9 Track
./DEC/Gxxx/G062: Mag Tape Peak Detector, 9 Track
./DEC/Gxxx/G064: Mag Tape Slicer, 9 Track
./DEC/Gxxx/G083: Disk Pre-Amp
./DEC/Gxxx/G084: Mag Tape Read, Rectify, Slice Amp, TU20, also used on G086
./DEC/Gxxx/G085: Disk Amplifier (replaces 1/2 G083 + 1/2 W532) + (1/2 W533)
./DEC/Gxxx/G094: Threshold and Buffer
./DEC/Gxxx/G100: Sense Amp & Inhibit Driver, PDP15, 3 wire, 3D memory
./DEC/Gxxx/G102: Sense, Inhibit, & Register (4 bits) for MM11 & ME10
./DEC/Gxxx/G103: Memory Voltage Levels, MM11 & ME10
./DEC/Gxxx/G206: Memory Selector, PDP-6, 2us, double, used for G212
./DEC/Gxxx/G207: Inhibit Driver, 4 Quadrant, PDP-6, 2us, double
./DEC/Gxxx/G208: Inhibit Driver
G208B
is a drawing of DEC's G208B.
./DEC/Gxxx/G209: Memory Selector, double
G209B
is a drawing of DEC's G209B.
./DEC/Gxxx/G212: Memory common Driver, G206 + Misc. R&D, G206 etch, for PDP6 2us memory
./DEC/Gxxx/G217: Word Driver, MA10, uses G219 for Digit Driver
./DEC/Gxxx/G219: Memory Selector (A G209 for negative supply), PDP9
./DEC/Gxxx/G221: Memory Driver, IC Inputs, 4 circuits, PDP8/I, PDP8/L
./DEC/Gxxx/G222: Memory Selector, IC Inputs, 4 circuits, 3 wire, 3D memory, PDP15
./DEC/Gxxx/G223: 2 Read-Write Drivers, PDP-15
./DEC/Gxxx/G226: XY Selection Switch, single 8.5", ME10, MM11
./DEC/Gxxx/G228: Core Memory Inhibit Driver, IC Inputs, 8/I, 8/L
G228
is a drawing of DEC's G228 Inhibit Driver, including the unobtainium T-2052 transformers.
./DEC/Gxxx/G230: Current Source, with Delay Line on input, 0 to 40ns
./DEC/Gxxx/G284: Disk Writer, Disk
./DEC/Gxxx/G285: Series Switch, Disk
./DEC/Gxxx/G286: Center Tap Selector, Disk
./DEC/Gxxx/G287: Mag Tape Writer, 2 channels, 100mA Head Current, no center tap, 0 to -15V
./DEC/Gxxx/G290: Dissk Writer, includes 2.5MHz flip-flop
./DEC/Gxxx/G294: Disc Writer
./DEC/Gxxx/G295: Series Switch
./DEC/Gxxx/G296: Center Tap Selector
./DEC/Gxxx/G350: 9 Track, Dual Head, 45 IPS, Mag Tape Write Driver
./DEC/Gxxx/G380: Solenoid Drivers
./DEC/Gxxx/G500: TU55/TU56 Skew Tester
./DEC/Gxxx/G589: Differential Integrator/Amp, RP10 Controller, RP01-Memorex 630-1
./DEC/Gxxx/G590: Differential Filtered Integrator, RP10, RP02, Memorex 660
./DEC/Gxxx/G603: Memory Selector Matrix
./DEC/Gxxx/G604: Memory Selection Matrix, PDP-6
./DEC/Gxxx/G609: Memory Mounting Board
./DEC/Gxxx/G610: "A" Diode Matrix Board for PDP-8 stack 30-05256
./DEC/Gxxx/G611: "B" Diode Matrix Board for PDP-8 stack 30-05256
./DEC/Gxxx/G613: X Diode Matrix, 3 wire, 3D memory, 4K, 9/I
./DEC/Gxxx/G614: Y Diode Matrix, 3 wire, 3D memory, 4K, 9/I
./DEC/Gxxx/G624: Resistor Board for 8/I memory, similar to G621
./DEC/Gxxx/G626: Resistor Board for memory, PDP-10, 2.5 D
./DEC/Gxxx/G680: DS32 Disk Head Matrix
./DEC/Gxxx/G681: Track Matrix
./DEC/Gxxx/G700: Cable Terminator, W028 etch
./DEC/Gxxx/G7000: I/O Bus Terminator 1
./DEC/Gxxx/G7001: I/O Bus Terminator 2
./DEC/Gxxx/G7002: I/O Bus Terminator 3
./DEC/Gxxx/G7003: I/O Bus Terminator used in H807 quicklatch terminator
./DEC/Gxxx/G7004: I/O Bus Terminator used in H807 quicklatch terminator
./DEC/Gxxx/G7005: I/O Bus Terminator used in H807 quicklatch terminator
./DEC/Gxxx/G7006: I/O Bus Terminator used in H807 quicklatch terminator
./DEC/Gxxx/G701: Cable Terminator
./DEC/Gxxx/G702: DS32 Disk Simulator
./DEC/Gxxx/G703: 100 ohm Terminator, G700 pattern, double board with cut-out to fit over H003 or H004
./DEC/Gxxx/G704: 2mA Level Terminator, G796 etch & components
./DEC/Gxxx/G705: DEC Tape Jumper Module
./DEC/Gxxx/G706: DEC Tape Attenuator
./DEC/Gxxx/G711: RF08 Terminator Board
./DEC/Gxxx/G715: Terminator, equiv 100 ohms to +4V, uses +10V & ground, G700 pins
./DEC/Gxxx/G717: Positive Bus Control Signal Terminator, 5 100 ohms to ground, pins K2, M2, P2, S2, T2, same grounds as W022
G717
is an implementation of DEC's G717 bus terminator.
./DEC/Gxxx/G718: Timing Jumper for PDP12, when plugged in upside down, each delay line tape is shifted
./DEC/Gxxx/G726: ME10 Bus Control, a Jumper Board
./DEC/Gxxx/G727: Grant Continuity, a Jumper Board
./DEC/Gxxx/G7273: Grant Continuity, double height
./DEC/Gxxx/G734: Input Clamp
./DEC/Gxxx/G737: 9 Dividers, 150 ohms to +3V, W028 pins
./DEC/Gxxx/G741: TU10 Negative Bus Terminator
./DEC/Gxxx/G742: Jumper Card, pins of non-inverting M500 & M531, TU56 with positive logic controls
./DEC/Gxxx/G766: G796 with 3M cable, 14 signals, 2 grounds
./DEC/Gxxx/G772: PDP-11 Power Connector
./DEC/Gxxx/G775: 36 wires to Indicator, Q's, +6.5V from lamps, RF09
./DEC/Gxxx/G780: Power Connector Card for PDP-12
./DEC/Gxxx/G783: 9 Twisted Pair and Shield, 1 pair ground return
./DEC/Gxxx/G785: Power Connector, 8/L, with Power OK
./DEC/Gxxx/G789: Signal Simulator Connector
./DEC/Gxxx/G790: Signal Simulator Generator
./DEC/Gxxx/G792: PDP-8/I Power Connector
./DEC/Gxxx/G793: PDP-8/I Switch Connector, 8/I to console
./DEC/Gxxx/G795: Clamped Level Cable Connector, W021 pins, diodes to +0.7V & -3V, PDP-9, extended memory
./DEC/Gxxx/G796: Clamped Level Cable Connector, W034 with clamps, ground and -3V with 2mA clamped loads, G704 etch
./DEC/Gxxx/G799: Cable Connector
./DEC/Gxxx/G800: Control for 739 Power Supply
./DEC/Gxxx/G8004: Power Fail
./DEC/Gxxx/G803: Rectifying Slicer
G803A
is a drawing of DEC's G803A.
G803X
is a 'modernized' G803.
./DEC/Gxxx/G805: Regulator for negative 8 memory, Double
./DEC/Gxxx/G808: Control for 708 Power Supply
./DEC/Gxxx/G809: -15V Sense and Relay Driver
./DEC/Gxxx/G810: 6V Regulator Control, Drives a G805
./DEC/Gxxx/G816: Modified G806 for driving 70V Power Supply Regulator Outputs
./DEC/Gxxx/G817: Card 1 for 713
./DEC/Gxxx/G818: Card 2 for 713
./DEC/Gxxx/G821: +5V Regulator Control and Output Card for PDP15 (see G829)
./DEC/Gxxx/G822: -6V Regulator (from -10V) for sense amps, PDP15
./DEC/Gxxx/G823: -24V Memory Regulator Control, drives G825, PDP15
./DEC/Gxxx/G824: +5V Regulator Control, PDP-12
./DEC/Gxxx/G825: -24V Pass Element, from G823, Double
./DEC/Gxxx/G826: Regulator Control for 8/I, drives G805 & detects presence of other voltages
./DEC/Gxxx/G827: Low Voltage Detector, PDP-15, + K303 RC's detects +9V, uses +5V
./DEC/Gxxx/G828: Regulator Control, ME10, uses G805
./DEC/Gxxx/G829: 5V Connector Card for PDP15 peripherals, with overvoltage SCR & fuse, can replace G821, Double
./DEC/Gxxx/G830: 5V, 10 Amp Regulator from 8V, KI10
./DEC/Gxxx/G831: -10V Reference, +5V output, 0 to +10V 6-bit DAC, Marginal Check Control, KI10
./DEC/Gxxx/G836: Positive & -20V Regulator for VT14
./DEC/Gxxx/G838: Fault Protection, provides +5V for intensity board W682, in VR14
./DEC/Gxxx/G847: Dual Voltage Control for G848, TU56
./DEC/Gxxx/G848: TU56 Motor Drive, Triple
./DEC/Gxxx/G850: SCR Motor Driver, TU55
G850L
is a drawing of DEC's G850L.
G850X
is a 'modernized' G850.
./DEC/Gxxx/G851: DECtape Relay Module
G851B
is a drawing of DEC's G851B.
G851X
is a 'modernized' G851.
./DEC/Gxxx/G853: DECtape Misc, Single Unit Selection & Timing Track Sensing
G853A
is a drawing of DEC's G853A.
G853X
is a 'modernized' G853.
./DEC/Gxxx/G854: Telegraph Line Circuit
./DEC/Gxxx/G858: Teletype Connector, PDP-15, 8 pin AMP connector
./DEC/Gxxx/G859: Clock & Regulator for TU56, Long
./DEC/Gxxx/G879: Transport Detector, TC08, TC09, TC15
G879
is an Eagle version of DEC's G879 Transport Detector.
./DEC/Gxxx/G882: Manchester Reader-Writer
G882B
is a drawing of DEC's G882B.
G882X
is a 'modernized' G882.
./DEC/Gxxx/G888: Manchester Reader/Writer
G888
is an early attempt to draw the G888.
G888a
is an Eagle version of DEC's G888 with DIP versions of the MC1709.
G888b
an updated version of G888a.
G888c
an older version of G888a.
G888x
The latest verion of the G888, with a bunch of cross-reference information in the schematic.
./DEC/Gxxx/G903: Clock Accelerator for Paper Tape Reader
./DEC/Gxxx/G906: LINC-8 Capacitor and Power Up
./DEC/Gxxx/G912: Deflection Amplifier, -12 Amps into 30uH Push-Pull Yoke, 15us full deflection time, VR12, Long, Double, Thick
./DEC/Gxxx/G913: Clock Control, (G903 + 1/2 R302 + 1/3 R603)
./DEC/Gxxx/G916: Power Detector & Switch Filter, PDP-12
./DEC/Gxxx/G917: Gain & Set Control for VR12
./DEC/Gxxx/G918: Photocell Amplifier for PT04, PT05, replacement for G908, for phototransistors
./DEC/Gxxx/G921: PDP-8/L Console (plugs in)
./DEC/Gxxx/G932: Capstan Servo Preamp (drives H603)
./DEC/Gxxx/G933: Reel Motor Amp for TU10, +/-12V, +/-6A
./DEC/Gxxx/G9340: Replacement for logic portion of G934
./DEC/Gxxx/G9341: Replacement for output portion of G934, higher current
./DEC/Gxxx/G936: Reel Motor Amp for TU10, +/-12V, +/-6A
./DEC/Gxxx/G938: DECPack Head Position Servo Preamp, Long, Double
./DEC/Gxxx/G998: Current Measuring Extender, 1-1/2 length with Bus Loops
./DEC/Kxxx: Kxxx modules
./DEC/Kxxx/K003: Gate Expander
./DEC/Kxxx/K026: Gate Expander
./DEC/Kxxx/K113: Inverting Gate
./DEC/Kxxx/K123: English Gate
./DEC/Kxxx/K138: Eight Inverters
./DEC/Kxxx/K210: Decimal or Binary Counter
./DEC/Kxxx/K220: Decimal Up/Down Counter, Double
./DEC/Kxxx/K230: Parallel Input Shift Register
./DEC/Kxxx/K271: Set/Reset Memory
./DEC/Kxxx/K273: Retentive Memory
./DEC/Kxxx/K303: Delay Timer
./DEC/Kxxx/K374: Calibrated Timer Control
./DEC/Kxxx/K376: Calibrated Timer Control
./DEC/Kxxx/K378: Calibrated Timer Control
./DEC/Kxxx/K508: Pilot Circuit Converter, Double
./DEC/Kxxx/K522: Comparator
./DEC/Kxxx/K604: Pilot Circuit Converter, Double
./DEC/Kxxx/K614: Isolated AC Switch
./DEC/Kxxx/K652: DC Driver
./DEC/Kxxx/K671: Decade Display
./DEC/Kxxx/K683: Driver
./DEC/Kxxx/K716: Pilot Circuit Converter, Double
./DEC/Kxxx/K731: Multi-Purpose Source
./DEC/Kxxx/K732: Slave Regulator
./DEC/Kxxx/K791: Test Probe
./DEC/Kxxx/K940: Mounting Bar Support
./DEC/Kxxx/K941: Mounting Bar
./DEC/M11x: Replacement for M11[13579] modules.
MxxxRow
is a drawing for TTL versions of the M11[13579], all on one board. (Populate only the row for the desired module type.)
MxxxCol
is similar to MxxxRow, but arranges the chips in columns (less successful).
Mxxx
is a module that implements the M11[13579] in TTL (a newer version of MxxxRow).
mxxx.pl
is some Perl code to look at input-output mapping for PAL implementations.
PALFromPerl
is a PAL-based version based on the results from mxxx.pl.
PALVersion
is another PAL-based version similar to PalFromPerl.
PAL3579
is a PAL version that fits everything except the M111.
PAL13579
is a PAL version that fits everything, but needs a fourth PAL.
MxxxOVR
is the latest through-hole TTL version.
MxxxSMT
is an SMT verstion, which adds the M206/M216 and M207.
MxxxSMT8x11
is an 7.7"x10.1" panelization of six MxxxSMT.
./DEC/Mxxx: Mxxx modules
./DEC/Mxxx/M002: 15 Loads
M002A
is a drawing of DEC's M002A.
M002X
is a 'modernized' M002.
./DEC/Mxxx/M040: Solenoid Driver
M040E
is a drawing of DEC's M040E.
M040X
is a 'modernized' M040.
./DEC/Mxxx/M044: 4-100mA Solenoid Drivers
M044B
is a drawing of DEC's M044B.
M044X
is a 'modernized' M044.
./DEC/Mxxx/M050: Inverter driver, 12 circuits, switch -30V and 50mA max/driver
./DEC/Mxxx/M051: Level Converter, positive logic in and negative logic out, 12 circuits, open collector
./DEC/Mxxx/M060: Solenoid Driver
M060A
is a drawing of DEC's M060A.
M060X
is a 'modernized' M060.
./DEC/Mxxx/M100: Bus Data Interface
M100A
is a drawing of DEC's M100A.
M100X
is a 'modernized' M100.
./DEC/Mxxx/M101: Bus Data Interface
M101A
is a drawing of DEC's M101A.
M101X
is a 'modernized' M101.
./DEC/Mxxx/M102: Negative Bus Equivalent to M103
./DEC/Mxxx/M103: Device Selector
M103A
is a drawing of DEC's M103A.
M103B
is a drawing of DEC's M103B.
M103X
is a 'modernized' M103.
./DEC/Mxxx/M104: I/O Bus Multiplexor
M104D
is a drawing of DEC's M104D.
./DEC/Mxxx/M105: Address Selector
M105C
is a drawing of DEC's M105C.
M105X
is a 'modernized' M105.
./DEC/Mxxx/M106: Dot NOR Gates
M106A
is a drawing of DEC's M106A.
M106X
is a 'modernized' M106.
./DEC/Mxxx/M107: Device Selector
./DEC/Mxxx/M108: Flag Module
./DEC/Mxxx/M109: Device Select Module
M109A
is a drawing of DEC's M109A.
M109X
is a 'modernized' M109.
./DEC/Mxxx/M1103: 10 2-Input AND Gates
M1103A
is a drawing of DEC's M1103A.
M1103X
is a 'modernized' M1103.
./DEC/Mxxx/M111: Inverters
M111A
is a drawing of DEC's M111A.
M111B
is a drawing of DEC's M111B.
M111C
is a drawing of DEC's M111C.
M111D
is a drawing of DEC's M111D.
M111X
is a 'modernized' M111.
./DEC/Mxxx/M112: NOR Gates
M112D
is a drawing of DEC's M112D.
M112E
is a drawing of DEC's M112E.
M112X
is a 'modernized' M112.
./DEC/Mxxx/M113: 10 2-Input NAND Gates
M113B
is a drawing of DEC's M113B.
M113C
is a drawing of DEC's M113C.
M113D
is a drawing of DEC's M113D.
M113X
is a 'modernized' M113.
./DEC/Mxxx/M115: 8 3-Input NAND Gates
M115C
is a drawing of DEC's M115C.
M115D
is a drawing of DEC's M115D.
M115X
is a 'modernized' M115.
./DEC/Mxxx/M116: 6 4-Input NOR Gates
M116A
is a drawing of DEC's M116A.
M116X
is a 'modernized' M116.
./DEC/Mxxx/M117: 6 4-Input NAND Gates
M117B
is a drawing of DEC's M117B.
M117C
is a drawing of DEC's M117C.
M117E
is a drawing of DEC's M117E.
M117X
is a 'modernized' M117.
./DEC/Mxxx/M119: 3 8-Input NAND Gates
M119B
is a drawing of DEC's M119B.
M119C
is a drawing of DEC's M119C.
M119X
is a 'modernized' M119.
./DEC/Mxxx/M121: 6 AND-NOR Gates
M121B
is a drawing of DEC's M121B.
M121D
is a drawing of DEC's M121D.
M121X
is a 'modernized' M121.
./DEC/Mxxx/M126: H version of M121, not pin compatible
./DEC/Mxxx/M127: 2 2-2-3 AND-NOR Gates
M127A
is a drawing of DEC's M127A.
M127X
is a 'modernized' M127.
./DEC/Mxxx/M129: 4-4 AND-NOR, H, 4 circuits
./DEC/Mxxx/M130: 5 8-bit parity circuits + 5 2-input XOR gates (MC4008)
./DEC/Mxxx/M1307: 6 4-Input AND Gates
./DEC/Mxxx/M133: 10-2 Input NAND Gates
M133A
is a drawing of DEC's M133A.
M133B
is a drawing of DEC's M133B.
M133X
is a 'modernized' M133.
./DEC/Mxxx/M135: 8-3 Input NAND Gates
M135A
is a drawing of DEC's M135A.
M135X
is a 'modernized' M135.
./DEC/Mxxx/M139: H version of M119
./DEC/Mxxx/M141: Two 2-2-2-2 AND-NOR gates, 2-2-2 AND-NOR gate. 2 input NAND, 2 inverters
M141B
is a drawing of DEC's M141B.
M141X
is a 'modernized' M141.
./DEC/Mxxx/M142: Adder, discrete equivalent to M132
./DEC/Mxxx/M143: 10 2-input NAND gates, with one pair sharing common input, KI10
./DEC/Mxxx/M145: 3-input NAND gates, 7 circuits, 74H, KI10
./DEC/Mxxx/M149: 9x2 NAND Wired OR Matrix
M149A
is a drawing of DEC's M149A.
M149C
is a drawing of DEC's M149C.
M149X
is a 'modernized' M149.
./DEC/Mxxx/M1500: Bi-directional Bus Interfacing Gates, extended single
./DEC/Mxxx/M1501: Bus Input Interface, extended single
./DEC/Mxxx/M1502: Bus Output Interface, extended single
./DEC/Mxxx/M151: Dual binary to octal with enable, H series, KI10, 74H20
./DEC/Mxxx/M1510: Bus Device Selector Module, extended double
./DEC/Mxxx/M152: M151 non-inverting, KI10, 74H21
./DEC/Mxxx/M155: 4 Line to 16 Line Decoder
./DEC/Mxxx/M159: 4 bit arithmetic logic unit (DEC 74181), uses 50-08908 board
./DEC/Mxxx/M160: AND-NOR Gate Module
M160C
is a drawing of DEC's M160C.
M160X
is a 'modernized' M160.
./DEC/Mxxx/M161: Binary to Octal/Decimal Decoder
M161
is a version of revision C with design rules more suited to milling individual PCBs.
M161C
is a drawing of DEC's M161C.
M161X
is a 'modernized' M161.
./DEC/Mxxx/M162: Parity Circuit
M162B
is a drawing of DEC's M162B.
M162X
is a 'modernized' M161.
./DEC/Mxxx/M163: Dual binary to decimal decoder
./DEC/Mxxx/M164: 6-bit adder for PDP-15, 2 adders for carry-in 1 or 0
./DEC/Mxxx/M165: Memory buffer, inverting and non-inverting output from open collector, 8 channels for KI10
./DEC/Mxxx/M166: 9-bit Counting Gate, KI10
./DEC/Mxxx/M168: 12 Bit Magnitude Comparator
./DEC/Mxxx/M169: Functional gate module for PDP-12, 4 4-bit output multiplexors
M169B
is a drawing of DEC's M169B.
M169X
is a 'modernized' M169.
./DEC/Mxxx/M170: 3-3-3-2-2-2-2-2 AND-NOR & 3-2-2-2 AND-NOR, H series, KI10
./DEC/Mxxx/M1701: 4 to 1 MUX, 4 circuits, 50-08912 etch, 74153
./DEC/Mxxx/M171: 2-2-2-3 AND-NOR, 3 circuits, different pins than M127
./DEC/Mxxx/M1713: 16 to 1 MUX inverting, 74150, 50-08908 etch
M1713A
is a drawing of DEC's M1713A.
M1713X
is a 'modernized' M1713.
./DEC/Mxxx/M172: 2 En x 9 out mixer, 74H50, for KI10
./DEC/Mxxx/M173: Non-inverting M143
./DEC/Mxxx/M174: 4 En x 9 out mixer, 74H53s, KI10
./DEC/Mxxx/M175: 7 3-input AND gates, 74H, KI10
./DEC/Mxxx/M177: Non-inverting M147
./DEC/Mxxx/M178: 8 En x 6 out mixer, 74H53, 74H62, KI10
./DEC/Mxxx/M181: Non-inverting M171
./DEC/Mxxx/M182: M162 with fast ICs, 74H
./DEC/Mxxx/M191: 2 Look-ahead elements (74182), uses W961 board, used with M190 or M159 (board 50-08912)
M191C
is a drawing of DEC's M191C.
M191X
is a 'modernized' M191.
./DEC/Mxxx/M202: Triple J-K Flip Flop
./DEC/Mxxx/M203: 8 Set-Reset Flip Flops
M203B
is a drawing of DEC's M203B.
M203X
is a 'modernized' M203.
./DEC/Mxxx/M204: Counter Buffer
M204D
is a drawing of DEC's M204D.
M204X
is a 'modernized' M204.
./DEC/Mxxx/M205: 5 D Flip Flops
M205A
is a drawing of DEC's M205A.
M205X
is a 'modernized' M205.
./DEC/Mxxx/M206: 6 D Flip-Flops
M206C
is an Eagle version of DEC's M206C Flip-Flop module.
M206X
is a 'modernized' M206.
./DEC/Mxxx/M207: 6 J-K Flip-Flops
M207C
is a drawing of DEC's M207C.
M207E
is a drawing of DEC's M207E.
M207X
is a 'modernized' M207.
./DEC/Mxxx/M208: Buffer/Shift Register
M208C
is a drawing of DEC's M208C.
M208X
is a 'modernized' M208.
./DEC/Mxxx/M211: 6-bit Up/down counter
./DEC/Mxxx/M212: 6 Bit L-R Shift Register
M212B
is a drawing of DEC's M212B.
M212X
is a 'modernized' M212.
./DEC/Mxxx/M213: BCD Up/Down Counter
./DEC/Mxxx/M214: 6-bit Accumulator with 3 inputs
./DEC/Mxxx/M216: 6 D Flip-Flops
M216B
is a drawing of DEC's M216C.
M216X
is a 'modernized' M216.
./DEC/Mxxx/M217: Clock register for PDP-12, 4 bit counter with buffer register for preset or readout
M217A
is a drawing of DEC's M217A.
M217X
is a 'modernized' M217.
./DEC/Mxxx/M218: Bi-directional shift register, 9 bits, 2 parallel loads
./DEC/Mxxx/M219: 7-bit synchronous counter with jam and clear presets
./DEC/Mxxx/M220: Major Registers, double
M220A
is a drawing of DEC's M220A.
M220B
is a drawing of DEC's M220B.
M220new
is an implementation that doesn't use the hard to find 7453 and 7482 chips.
M220pal
is a PAL implementation, using 22V10 programed with m220pgm1.pds and m220pgm2.pds.
M220p16
is a PAL implementation, using 16V8 programed with m220a.pds, m220b.pds, and m220c.pds.
M220xc
is a PLD implementation, using XC9536XL programed with m220a.v, m220b.v, and m220c.v.
M220X
is a 'modernized' M220 (using 16V8).
./DEC/Mxxx/M221: Register for PDP-12 (M220 plus extra logic), Double
M221D
is a drawing of DEC's M221D.
./DEC/Mxxx/M222: Tape register for PDP-12, 2 bits, 6 registers, Double
M222B
is a drawing of DEC's M222B.
./DEC/Mxxx/M223: MA,/MB Registers
M223B
is a drawing of DEC's M223B.
./DEC/Mxxx/M226: 1 Bit, all registers (except ACC) for PDP-15
./DEC/Mxxx/M227: Accumulator for PDP-15, 9 bits
./DEC/Mxxx/M228: Mark Track Decoder
M228A
is a drawing of DEC's M228A.
M228X
is a 'modernized' M228.
./DEC/Mxxx/M230: Binary to BCD and BCD to Binary Converter, double
./DEC/Mxxx/M232: 16x1 RAM
./DEC/Mxxx/M233: Disk Shift Register
./DEC/Mxxx/M236: 12 Bit Binary Up/Down Counter
./DEC/Mxxx/M237: 3 Digit BCD Up/Down Counter
./DEC/Mxxx/M238: 2 4-bit Synchronous up/down counters with parallel load, separate up & down clocks, board etch 50-08912
./DEC/Mxxx/M239: 3-4 Bit Counter/Registers
M239A
is a drawing of DEC's M239A.
M239X
is a 'modernized' M239.
./DEC/Mxxx/M240: 6 R/S Flip Flops
M240B
is a drawing of DEC's M240B.
M240X
is a 'modernized' M240.
./DEC/Mxxx/M241: 6 D Flip-flops (74H74) with common clock
./DEC/Mxxx/M242: H version of M202
./DEC/Mxxx/M243: 8 D Flip-flops (74H74) with 2 common clocks, 4 bits each
./DEC/Mxxx/M245: Dual 4 Bit Shift Register
./DEC/Mxxx/M246: 5 D flip-flops, all pins available (74H74)
./DEC/Mxxx/M247: 6 RS flip-flops, clocked to 6 D flip-flops
./DEC/Mxxx/M248: 8-bit Shift right, parallel load, 50-08914 etch, 7495
./DEC/Mxxx/M250: 16 Words, 4-bit memory (F9035), KI10
./DEC/Mxxx/M253: 16 Words, 12-bit memory (TI 7489)
./DEC/Mxxx/M260: Associative memory, 4x12, KI10, Fairchild 4102 IC, 35ns match time
./DEC/Mxxx/M261: 4-State Motor Translator
./DEC/Mxxx/M262: 10-State Motor Translator, double
./DEC/Mxxx/M302: One Shot Delay
M302D
is a drawing of DEC's M302D.
M302K
is a drawing of DEC's M302K.
M302X
is a 'modernized' M302.
./DEC/Mxxx/M304: One Shot Delay
M304A
is a drawing of DEC's M304A.
M304B
is a drawing of DEC's M304B.
M304X
is a 'modernized' M304.
./DEC/Mxxx/M306: Integrating One Shot
M306B
is a drawing of DEC's M306B.
M306X
is a 'modernized' M306.
./DEC/Mxxx/M307: Integrating One Shot
M307-9601
is DEC's M307 Integrating One Shot module, with the now hard to find 9601 monostables.
M307
is a version of the M307 using the more readily available 74123 instead of the 9601.
M307A
is a drawing of DEC's M307A.
M307B
is a drawing of DEC's M307B.
M307X
is a 'modernized' M307.
./DEC/Mxxx/M3070: Dual integrating one-shot 200ns to 20ms in 5 steps
./DEC/Mxxx/M308: Integrating one-shot, edge or pulse triggered, clock, power up & down
./DEC/Mxxx/M310: Delay Line
M310A
is a drawing of DEC's M310A.
M310B
is a drawing of DEC's M310B.
./DEC/Mxxx/M311: Tapped Delay Lines
M311A
is a drawing of DEC's M311A.
./DEC/Mxxx/M312: Delay Module
M312B
is a drawing of DEC's M312B.
M312C
is a drawing of DEC's M312C.
./DEC/Mxxx/M321: M311 except one delay line, one output buffer can drive 30 TTL H loads
./DEC/Mxxx/M360: Variable Delay
M360
is a replacement for DEC's M360 Variable Delay, based in part on the MM360, by Dave Brockman.
M360B
is a drawing of DEC's M360B.
./DEC/Mxxx/M362: Delay, 25 to 50 ns
./DEC/Mxxx/M363: Delay, 15 to 30 ns, inverts
./DEC/Mxxx/M401: Variable Clock
M401B
is a drawing of DEC's M401B.
M401M
is a drawing of DEC's M401M.
M401X
is a 'modernized' M401.
./DEC/Mxxx/M402: Remotely variable clock, Uses 5V photomod, 2Hz to 1MHz
./DEC/Mxxx/M403: RC Multivibrator Clock
./DEC/Mxxx/M404: Crystal Clock
./DEC/Mxxx/M405: Crystal Clock, positive and negative pulse outputs, 5KHz to 10MHz
M405A
is a drawing of DEC's M405A.
M405B
is a drawing of DEC's M405B.
M405X
is a 'modernized' M405.
./DEC/Mxxx/M410: Resonant Reed Clock
./DEC/Mxxx/M420: Phase Lock Clock, RP09, RP15, double
M420C
is a drawing of DEC's M420C.
M420X
is a 'modernized' M420.
./DEC/Mxxx/M452: Variable Clock
M452A
is a drawing of DEC's M452A.
M452X
is a 'modernized' M452.
./DEC/Mxxx/M453: Variable Clock
M453A
is a drawing of DEC's M453A.
M453X
is a 'modernized' M453.
./DEC/Mxxx/M500: Negative Input Converter
M500B
is a drawing of DEC's M500B.
M500X
is a 'modernized' M500.
./DEC/Mxxx/M501: Schmitt Trigger
M501B
is a drawing of DEC's M501B.
M501X
is a 'modernized' M501.
./DEC/Mxxx/M502: Negative Input Converter
M502A
is a drawing of DEC's M502A.
M502B
is a drawing of DEC's M502B.
M502X
is a 'modernized' M502.
./DEC/Mxxx/M503: Differential Schmitt, 2 channels, pulse amplifier in each
M503A
is a drawing of DEC's M503A.
M503X
is a 'modernized' M503.
./DEC/Mxxx/M506: Negative Input Converter, 6 channels, 0 and -3V in
M506C
is a drawing of DEC's M506C.
M506X
is a 'modernized' M506.
./DEC/Mxxx/M507: Bus Converter
M507A
is a drawing of DEC's M507A.
M507X
is a 'modernized' M507.
./DEC/Mxxx/M508: Negative bus to positive bus converter, 6 circuits, open collector outputs, GND in = positive out
./DEC/Mxxx/M510: I/O Bus Receiver
M510A
is a drawing of DEC's M510A.
M510X
is a 'modernized' M510.
./DEC/Mxxx/M511: Unibus Reciever, 15 circuits, 4 GND, DS11, DL10
./DEC/Mxxx/M514: TU10 Transceiver (for connection to TC58, TC59, & TM10), see M519, double
M514H
is a drawing of DEC's M514H.
M514X
is a 'modernized' M514.
./DEC/Mxxx/M515: Real Time Clock, 12VAC input on tabs, uses +11V & +5V
./DEC/Mxxx/M516: Hex Positive Bus Receiver
M516A
is a drawing of DEC's M516A.
M516X
is a 'modernized' M516.
./DEC/Mxxx/M517: M507 with an enable input
./DEC/Mxxx/M521: K to M Converter
./DEC/Mxxx/M531: 8 channel Negative Bus Receiver with noise filtering (M500 pins)
./DEC/Mxxx/M564: I/O Bus Receiver, 8 circuits, negative bus, positive logic, light input load
./DEC/Mxxx/M565: Memory Bus Receiver, 8 circuite, negative bus, positive logic
./DEC/Mxxx/M592: I/O Device Select (used with M71000)10 74H IC's
./DEC/Mxxx/M5940: 8 channel EIA-CCITT to DEC, 7 DEC to EIA-CCITT, DF11-A, 1V hysteresis, 5" veersion
./DEC/Mxxx/M597: 6 Channel IBM Receiver
M597D
is a drawing of DEC's M597D.
./DEC/Mxxx/M602: Pulse Amplifier
M602A
is a drawing of DEC's M602A.
M602X
is a 'modernized' M602.
./DEC/Mxxx/M603: 2 Pulse Amplifiers, negative edge in, 1 positive 60ns & 1 positive 45-100ns out, 4 2-input NANDs (74H00), 3 3-input ANDs (74H11)
./DEC/Mxxx/M606: Pulse Generator
M606A
is a drawing of DEC's M606A.
M606B
is a drawing of DEC's M606B.
M606X
is a 'modernized' M606.
./DEC/Mxxx/M610: 6 Open Collector 2-Input NAND Gates + Pulse Amplifier
./DEC/Mxxx/M611: High Speed Power Inverter
M611A
is a drawing of DEC's M611A.
M611B
is a drawing of DEC's M611B.
M611X
is a 'modernized' M611.
./DEC/Mxxx/M612: 6 Power Gates, 6 grounds, 5 inputs per gate pair
./DEC/Mxxx/M617: 6-4 Input NOR Buffers
M617B
is a drawing of DEC's M617B.
M617C
is a drawing of DEC's M617C.
M617E
is a drawing of DEC's M617E.
M617X
is a 'modernized' M617.
./DEC/Mxxx/M621: Bus Driver, 6 circuits, enables for each of 2 6-bit words
./DEC/Mxxx/M622: Bus Drivers
M622A
is a drawing of DEC's M622A.
M622X
is a 'modernized' M622.
./DEC/Mxxx/M623: Bus Drivers
M623A
is a drawing of DEC's M623A.
M623E
is a drawing of DEC's M623E.
M623X
is a 'modernized' M623.
./DEC/Mxxx/M624: Bus Drivers
M624A
is a drawing of DEC's M624A.
M624X
is a 'modernized' M624.
./DEC/Mxxx/M627: Power Amplifier Module
M627A
is a drawing of DEC's M627A.
M627C
is a drawing of DEC's M627C.
M627X
is a 'modernized' M627.
./DEC/Mxxx/M628: 2 switches, 2 bit adder, 1 M621 type driver, for MX15
M628A
is a drawing of DEC's M628A.
M628X
is a 'modernized' M628.
./DEC/Mxxx/M629: Bus Driver, 11 circuits, for positive bus, PDP11, 8881's
./DEC/Mxxx/M632: Positive Input Converter Drivers
M632B
is a drawing of DEC's M632B.
M632X
is a 'modernized' M632.
./DEC/Mxxx/M633: Negative Bus Driver
M633B
is a drawing of DEC's M633B.
M633X
is a 'modernized' M633.
./DEC/Mxxx/M640: Master Interface Bus Driver, double
M640C
is a drawing of DEC's M640C.
M640X
is a 'modernized' M640.
./DEC/Mxxx/M650: Negative output converter, 3 channels, R650 type outputs
M650D
is a drawing of DEC's M650D.
M650X
is a 'modernized' M650.
./DEC/Mxxx/M651: M650 with outputs clamped to ground when 5V goes away
M651C
is a drawing of DEC's M651C.
M651X
is a 'modernized' M651.
./DEC/Mxxx/M652: Negative Output Converters
M652A
is a drawing of DEC's M652A.
M652X
is a 'modernized' M652.
./DEC/Mxxx/M660: Positive Level Drivers
M660A
is a drawing of DEC's M660A.
M660B
is a drawing of DEC's M660B.
M660X
is a 'modernized' M660.
./DEC/Mxxx/M661: Positive Level Driver for 8/I bus, 3 circuits, output clamped to +3V, M660 pins
M661A
is a drawing of DEC's M661A.
M661X
is a 'modernized' M661.
./DEC/Mxxx/M663: 3 negative Memory Bus Drivers, positive input, 50 ohm load, KI10
./DEC/Mxxx/M664: I/O Bus Driver, 0 to +3V in, 0 to -3V out, 8 circuits
./DEC/Mxxx/M665: Memory Bus Driver, 0 to +3V in, 0 to -3V out, 8 circuits
./DEC/Mxxx/M666: I/O Bus Reset, 12 outputs, 20mA@-3V, 1/3 duty factor max
./DEC/Mxxx/M671: M to K Converter
./DEC/Mxxx/M697: 4 Channel IBM Transmitter
M697D
is a drawing of DEC's M697D.
./DEC/Mxxx/M700: Manual Timing Generator, double
M700A
is a drawing of DEC's M700A.
M700B
is a drawing of DEC's M700B.
M700E
is a drawing of DEC's M700E.
M700X
is a 'modernized' M700.
./DEC/Mxxx/M701: Display Control, VC8/I, double
M701D
is a drawing of DEC's M701D.
M701X
is a 'modernized' M701.
./DEC/Mxxx/M7011: Serial Transmitter
./DEC/Mxxx/M703: Power Fail Logic, 8/I
M703E
is a drawing of DEC's M703E.
M703X
is a 'modernized' M703.
./DEC/Mxxx/M704: Plotter Control, 8/I
./DEC/Mxxx/M705: Reader Control, double
M705D
is a drawing of DEC's M705D.
M705J
is a drawing of DEC's M705J.
M705X
is a 'modernized' M705.
./DEC/Mxxx/M7050: Reader Control with feed hole strobe & feed hole transistion out-of-tape sense, Double
M7050D
is a version of DEC's M7050D.
./DEC/Mxxx/M706: Teletype Receiver, double
M706D
needs a drawing.
M706K
needs a drawing.
./DEC/Mxxx/M707: Teletype Transmitter, double
M707C
is a drawing of M707 etch C.
M707C+
is a drawing of M707 etch C with a resistor in SERIAL OUT, like M707D.
M707D
is a drawing of M707 etch D.
./DEC/Mxxx/M708: Clock Control, 8/I
M708A
needs a drawing.
M708B
is an Eagle version of DEC's M708B.
M708C
needs a drawing.
M708X
is an Eagle version of DEC's M708B with unused inputs tied high.
./DEC/Mxxx/M709: Clock Counter, 8/I
M709A
needs a drawing.
M709B
is an Eagle version of DEC's M708B.
./DEC/Mxxx/M710: Punch control, double
M710-9601
is a drawing of DEC's M710 Punch Controller card, which uses the hard to find 9601 monstable.
M710
is a drawing of DEC's M710 Punch Controller card, which uses the hard to find 9601 monstable.
M710F
needs a drawing.
M710H
needs a drawing.
./DEC/Mxxx/M7100: I/O Device Control, used with M592, 10 74H IC's
./DEC/Mxxx/M7102: Positive I/O Bus Converter
M7102
is a drawing of DEC's M7102 Positive I/O Bus Converter Board.
./DEC/Mxxx/M7103: Negative I/O Bus Converter
M7103
is a drawing of DEC's M7103 Negative I/O Bus Converter Board.
./DEC/Mxxx/M711: Scope Control, PDP-12
./DEC/Mxxx/M714: Control Logic I, CR8-I, CR8-L
./DEC/Mxxx/M715: Reader Clock, double
M715
is a drawing of DEC's M715 Reader Clock module, with the hard to find 9601 monostables.
M715E
needs a drawing.
M715F
needs a drawing.
./DEC/Mxxx/M716: Control Logic II, CR8-I, CR8-L
./DEC/Mxxx/M717: Display Control, VP09, VP15
./DEC/Mxxx/M719: Clock Sync & Decade Counter, KW12
./DEC/Mxxx/M720: Memory Detection
M720
is DEC's M720 Memory Detection board.
M720db
is a version using monostables, based on the MM720 by Dave Brockman.
./DEC/Mxxx/M730: Positive Output Bus Interface
./DEC/Mxxx/M731: Negative Output Bus Interface
./DEC/Mxxx/M732: Positive Input Bus Interface
./DEC/Mxxx/M733: Negative Input Bus Interface
./DEC/Mxxx/M734: Input/Output Bus Multiplexer
./DEC/Mxxx/M735: Input/Output Bus Transfer Register
./DEC/Mxxx/M736: Priority Interrupt Module
./DEC/Mxxx/M737: 12-Bit Bus Receiver Interface
./DEC/Mxxx/M738: Counter-Buffer Interface
./DEC/Mxxx/M7390: Aynchronous Transceiver, extended double
./DEC/Mxxx/M750: Line I/O Control, equivalent to 2 W750s
./DEC/Mxxx/M751: Line Register & R Register for DC08A, I/O Bus Connection
./DEC/Mxxx/M752: Instruction Decoder & Gates for DC08A
./DEC/Mxxx/M753: Control for 2 Data Set Lines in DC08F
./DEC/Mxxx/M760: A/D CONTROL FOR PDP-12, POSSIBLE GENERAL APPLICATION
./DEC/Mxxx/M763: 9 Track Write Buffler for TU10, negative logic, see M893, double
./DEC/Mxxx/M765: 9 Track Read Buffer for TU10, double
./DEC/Mxxx/M767: Clock and Skew Delay
M767A
needs a drawing.
M767C
needs a drawing.
./DEC/Mxxx/M7670: Forward BOT Timer, TU10
./DEC/Mxxx/M7671: Master Slave Bus Driver, TU10, Double
./DEC/Mxxx/M7672: TU10 Command Buffers, Double
M7672
is a drawing of DEC's M7672 TU10 Command Buffers board, including the hard to find 8202 chip.
M7672n
is a drawing of DEC's M7672 TU10 Command Buffers board with the 8202 replaced with a 74821 chip.
./DEC/Mxxx/M7673: Data Checker, TU10, Double
./DEC/Mxxx/M768: Delay Selector for TU10, with TC58, TC59, TM10, double
./DEC/Mxxx/M769: Function Control for TU10
./DEC/Mxxx/M770: EAE CONTROL FOR PDP-15
./DEC/Mxxx/M771: INTERNAL DEVICE DECODER FOR PDP-15
./DEC/Mxxx/M772: CONSOLE CONTROL #1 FOR PDP-15
./DEC/Mxxx/M773: CONSOLE CONTROL #2 FOR PDP-15
./DEC/Mxxx/M775: TIME STATE GENERATOR
./DEC/Mxxx/M776: Reader Register, PC15, Double
./DEC/Mxxx/M7820: Interrupt Control, 7 bits, 1 per PDP11 peripheral, Replaced by M7821, extended single
./DEC/Mxxx/M7821: Interrupt Control, 7 bits, 1 per PDP11 peripheral, Faster M7820, extended single
M7821
is a drawing of DEC's M7821 Interrupt Control board.
./DEC/Mxxx/M783: Unibus/Omnibus Drivers, extended single
M783bad
is a version of the M783 that won't work.
M783
is basically DEC's version of the M783 Bus Drivers module, using the now hard to find DS8881.
M783new
is a version of DEC's M783 Bus Drivers module using the AM26S10 instead of the DS8881.
./DEC/Mxxx/M784: Unibus/Omnibus Receivers, extended single
M784bad
is a version of the M784 that won't work.
M784
is basically DEC's version of the M784 Bus Receivers module, using the now hard to find SP380.
M784new
is a version of DEC's M784 Bus Receivers module using the AM26S10 instead of the SP380.
./DEC/Mxxx/M785: Unibus/Omnibus Tranceiver, extended single
M785dec
is an Eagle drawing of DEC's M785 Unibus/Omnibus Tranceiver board using the hard to find DS8881 and SP380 chips..
M785
is a version of DEC's M785 Unibus/Omnibus Tranceiver board with the hard to find chips replaced with AM26S10.
M785-3116
is a version of DEC's M785 Unibus/Omnibus Tranceiver board with the hard to find chips replaced with 7438 and the (too) expensive TL3116.
./DEC/Mxxx/M786: Device Register Interface, extended double
./DEC/Mxxx/M795: Word Count and Bus Address Module, extended double
./DEC/Mxxx/M796: Unibus Master Control, extended single
./DEC/Mxxx/M797: Register Select
M797B
needs a drawing and a DEC schematic.
./DEC/Mxxx/M798: Unibus Drivers, extended single
./DEC/Mxxx/M837: Omnibus Timeshare Option
M837bb
is a 06/15/2007 checkpoint of M837. M837 is a drawing of DEC's M837 Omnibus Timeshare Option board, which uses a lot of hard to find chips.
./DEC/Mxxx/M847: MI8E Diode Bootstrap Loader
fig4-9
is an early checkpoint of an attempt to draw the boot loader card.
M847
is a drawing of DEC's M847 Diode bootstrap loader.
./DEC/Mxxx/M850: EIA Converter and Cable Connector
M850A
is a drawing of DEC's M850A EIA Connector card.
M850x
is a design for a version of the M850 EIA Connector card with input flow control implemented.
./DEC/Mxxx/M868: TD8E Simple Dectape Controller
M868H
is an Eagle version of DEC's M868 (ECO Rev. K) Simple Dectape Controller.
./DEC/Mxxx/M870: IMPLEMENTS SIMPLE CLOCK IN PDP12
./DEC/Mxxx/M890: Motion Control for TU10
./DEC/Mxxx/M891: TU10 CRC and Write Gating, Double
M891
is a version of DEC's M891 CRC and Write Gating module.
./DEC/Mxxx/M892: TU10 Write Gap Timing, Double
./DEC/Mxxx/M895: TU10/TU15 Read Timing, Double
./DEC/Mxxx/M896: TU10 CRC Checker
M896
is a drawing of DEC's M896 CRC Checker module, using the hard to find 8202.
M896n
is a version of the M896 CRC Checker with the 8202 replaced with the more common 74174.
./DEC/Mxxx/M900: CONNECTOR TO 8/I CONSOLE, 30 SIGNALS, 2 GNDS, TTL BUFFERING
./DEC/Mxxx/M901: FLAT MYLAR CABLE CONNECTOR, 10 OHMS IN A2,B2,U1 & V1, 2 CA8LES
./DEC/Mxxx/M902: TERMINATOR, 18 100 OHM RESISTORS, M903 & M904 CONNECTIONS
./DEC/Mxxx/M903: FLAT MYLAR CONNECTOR, 18 SIGNALS, 14 GND PINS·
./DEC/Mxxx/M904: Coax Connector, 2x 9-signals, split lug, M903 Pins
./DEC/Mxxx/M906: Cable Terminator
M906A
needs a drawing.
M906b
needs a drawing.
./DEC/Mxxx/M907: Diode Clamp
M907A
needs a drawing.
./DEC/Mxxx/M908: Connector Module
M908B
needs a drawing.
./DEC/Mxxx/M909: Terminator Card
M909A
needs a drawing.
./DEC/Mxxx/M910: CP Terminator Card
M910A
needs a drawing.
./DEC/Mxxx/M9100: H854 to H854 or Flip Chip Adapter, extended single
./DEC/Mxxx/M911: Memory Bus CP Terminator
M911A
needs a drawing.
./DEC/Mxxx/M912: Coax Connector, 4x 9-conductor, split lug, M904 Connections, double
./DEC/Mxxx/M915: 35 WIRES TO PDP-15 CONSOLE WITH PULL-UP RESISTORS
./DEC/Mxxx/M916: 36 Pin connector
M916
is a version of DEC's M916 36 pin paddle connector.
./DEC/Mxxx/M917: Ribbon Connector, 18 Signals, 14 GND Pins, split lug
./DEC/Mxxx/M918: Flat Mylar Connector, 36 Signals
./DEC/Mxxx/M919: 11 EXTERNAL BUS, 2 60-WIRE MYLAR, 56 SIGNALS, 14 GND PINS
./DEC/Mxxx/M920: Unibus Jumper Module
./DEC/Mxxx/M921: DEVICE CODE SELECT JUMPER MODULE, FOR 3 IOT'S
./DEC/Mxxx/M922: M901 WITH JUMPERS INSTEAD OF RESISTORS FOR INDICATOR BUS, NOT TO BE USED ON BOTH ENDS OF ANY CABLE
./DEC/Mxxx/M925: Flat Mylar Connector, 18 Signals, 19 Grounds, short single
./DEC/Mxxx/M926: M901 WITH 100 OHMS IN SERIES WITH SOME OF THE PINS
./DEC/Mxxx/M927: Coax Connector, 18-signals, split lug, short
./DEC/Mxxx/M929: Bus Connector, double
./DEC/Mxxx/M930: RK05/Unibus Terminator
M930
is a version of DEC's M930 RK05/Unibus Terminator card using discrete resistors.
M930c
is a version of DEC's M930C RK05/Unibus Terminator card, which uses DIP resistor packs.
./DEC/Mxxx/M931: 15 TERMINATORS, 2K TO +5V, CLAMPED AT +.75 & +3V, M903 PINS EXCEPT 9 INDICATOR OUTPUTS, KI10
./DEC/Mxxx/M935: Omnibus Jumper Module
./DEC/Mxxx/M941: JUMPER/EXTENDER BOARD FOR TU56
./DEC/Mxxx/M947: INDICATOR DRIVER, 24 CKTS, CABLE OUT BACK
./DEC/Mxxx/M948: 24 RESISTORS TO CABLE, 4 RESISTORS TO COMMON POINT, COMPANION TO M947
./DEC/Mxxx/M949: 9 INDICATOR DRIVERS, 18 SIGNALS, FOR KI CONSOLE
./DEC/Mxxx/M950: 9 RESISTORS TO CABLE, 9 R TO COMMON, 18 RC FILTERS, COMPANION TO M949
./DEC/Mxxx/M952: 27 LEVEL TERMINATORS, CLAMPS AT +.75 & 3.25V
./DEC/Mxxx/M953: Flat Cable Connector, 18 Signals, 18 Grounds
./DEC/Mxxx/M954: Flat Cable Connector, 36 Signals
./DEC/Mxxx/M955: Flat Cable Connector, 18 Signals
./DEC/Mxxx/M956: 18 130 OHMS TO +3.0V, M903 PINS
./DEC/Mxxx/M957: 8,5" LONG M908, NO HANOLE, CABLE CLAMP LOCATION ON SIDES & END
./DEC/Mxxx/M960: TD8E Connector #1
M960
is a version of DEC's M960 TD8E Connector board.
M960old
is a checkpoint of an incomplete version of DEC's M960 TD8E Connector board.
./DEC/Mxxx/M961: TD8E Connector #2
M961
is a version of DEC's M961 TD8E Connector board.
intercon
is just the interconnection of the ribbon cables.
M961old
is an early incomplete version of M961.
./DEC/Mxxx/M966: PDP15 Memory Bus Terminator
M966A
needs a drawing.
./DEC/Mxxx/M969: 24 LEVEL TERMINATORS LIKE M952 + 1 THERMISTOR
./DEC/Mxxx/M970: H854 MTD ON SINGLE X 8.5 CARD, ACCEPTS BC05C & BC01V
./DEC/Mxxx/M975: Flip Chip to 2x H854 Adapter, special double
./DEC/Mxxx/M993: RK8E Control Cable Connector
M993
is a version of DEC's M993 RK8E Control Cable Connector, with the select DEC7384 replaced with a more readily available gate.
./DEC/PDP8I: PDP-8/i
pdp8i
is a drawing of DEC's PDP-8/i computer backplane, rounded up from the CPU and option drawings.
pdp8i-dec
is a drawing of DEC's PDP-8/i computer backplane.
pdp8i-fpga
is a drawing of DEC's PDP-8/i computer backplane, tweaked for FPGA conversion.
./DEC/PDP8L: PDP-8/L
pdp8l
is a drawing of DEC's PDP-8/L computer backplane, with some NC pins grounded to suppress warnings, and the hand-wired +5 distribution connections omitted.
./DEC/PDP8S: PDP-8/S
Memory-4K.sch
is a schematic by John Price of a proposed core replacement for the 8/S.
memory-32kx13.sch
is another schematic by John Price of a proposed core replacement for the 8/S.
ramboard
is my drawing for a battery backed SRAM for the 8/S. This one uses an open collector bus to reduce the number of drivers.
mtiming
is a schematic with my notes on memory timing in the 8/S.
PDP8S
is a snapshot of the 8/S schematics (just the first page).
pre-io
is another snapshot of the 8/S schematics (9 pages done).
memory
is a complete schematic for the 8/S, with the core memory subsystem replaced with level converters and a ramboard.
./DEC/Proto: DEC Compatible Prototyping boards
proto
is a quad prototype board suitable for DIP/through hole designs.
omniproto
is a quad prototype board suitable for Omnibus DIP/through hole designs.
./DEC/RL0x: RL01/RL02 Related stuff.
./DEC/RL0x/terminator: RL0x Termininator boards.
terminator-sil
is a terminator implemented with SIL resistors.
terminator
is a terminator implemented with discrete SMT (0805) resistors.
./DEC/RX8E: M8357 RX8E Floppy Interface
RX8E
is a drawing of DEC's M8357 RX8E Floppy Interface board.
./DEC/Rxxx: Rxxx modules
./DEC/Rxxx/R001: Diode Network, 7 diodes, both ends brought to pins
R001A
is a drawing of DEC's R001A.
R001B
is a drawing of DEC's R001B.
R001X
is a 'modernized' R001.
./DEC/Rxxx/R002: Diode Network, 5 groups of 2 diodes, cathode common
R002A
is a drawing of DEC's R002A.
R002B
is a drawing of DEC's R002B.
R107X
is a 'modernized' R002.
./DEC/Rxxx/R012: Diode Network, R002 etch, anodes common
./DEC/Rxxx/R107: 7 Inverters, 1 with expansion node
R107A
is a drawing of DEC's R107A.
R107B
needs a drawing.
R107C
needs a drawing.
R107D
is a drawing of DEC's R107D.
R107E
needs a drawing.
R107S1A
is a drawing of DEC's R107S1A.
R107X
is a 'modernized' R107.
./DEC/Rxxx/R111: 3 2-Input Gates, Expandable, Open Collector, 3 clamp load resistors
R111E
is a drawing of DEC's R111E.
R111F
is a drawing of DEC's R111F.
R111X
is a 'modernized' R111.
./DEC/Rxxx/R1110: R111 with 2mA fan-in & 6534-C transistors, sinks 63ma
./DEC/Rxxx/R113: 5 2-Input Gates
R113A
is a drawing of DEC's R113A.
R113B
is a drawing of DEC's R113B.
R113X
is a 'modernized' R113.
./DEC/Rxxx/R1130: R113 with 2mA fan-in & 6534-C transistors, sinks 63ma
./DEC/Rxxx/R121: 2 2-Input, 1 3-Input, 1 4-Input Gates
R121A
is a drawing if DEC's R121A.
R121B
needs a drawing.
R121X
is a 'modernized' R121.
./DEC/Rxxx/R122: Logical Complement of R121
R122X
is a drawing of a 'modernized' R122.
./DEC/Rxxx/R123: Input Bus Gate, 6 Gates, 1 Independent Input, 1 Paired Common Input
R123B
is a drawing of DEC's R123B.
R123X
is a 'modernized' R123.
./DEC/Rxxx/R131: Exclusive OR, 4 circuits, Output is -3V if inputs are the same
R131C
is a drawing of DEC's R131C.
R131X
is a 'modernized' R131.
./DEC/Rxxx/R141: AND-NOR Gate, 7 sets of 2-Input AND Gates NORed together
R141E
is a drawing of DEC's R141E.
R141X
is a 'modernized' R141.
./DEC/Rxxx/R151: Binary-Octal Decoder, 6 Inputs + Enable, 8 Outputs
R151A
is a drawing of DEC's R151A.
R151B
is a drawing of DEC's R151B.
R151D
is a drawing of DEC's R151D.
R151X
is a 'modernized' R151.
./DEC/Rxxx/R152: Obsolete, R151 without clamp loads, see B152
./DEC/Rxxx/R181: DC Carry Cahin, 6 Interconnected Diode Gates + 1 Inverter
R181A
is a drawing of DEC's R181A.
R181C
is a drawing of DEC's R181C.
R181X
is a 'modernized' R181.
./DEC/Rxxx/R200: Set-Reset Flip-flop
./DEC/Rxxx/R201: RS FF with 3 Set and 2 Reset DCD Gates
R201A
needs a drawing.
R201C
is a drawing of DEC's R201C.
R201D
needs a drawing.
R201X
is a 'modernized' R201.
./DEC/Rxxx/R202: Dual FF, Direct Clear, Common Set, 1 set & 1 reset DCD Gate each
R202D
is a drawing of DEC's R202D.
R202E
is a drawing of DEC's R202E.
R202X
is a 'modernized' R202.
./DEC/Rxxx/R203: Triple FF, Direct Clear, Set DCD Gate each
R203D
is a drawing of DEC's R203D.
R203X
is a 'modernized' R203.
./DEC/Rxxx/R204: Quad FF, Direct Set for each, Direct Clear for 2, Common for 2
R204B
is a drawing of DEC's R204B.
R204X
is a 'modernized' R204.
./DEC/Rxxx/R205: Dual FF, Common Direct Clear, 2 DCD Gates each
R205D
is a drawing of DEC's R205D.
R205X
is a 'modernized' R205.
./DEC/Rxxx/R210: PDP8 Accumulator
R210A
is a drawing of DEC's R210A.
R210I
is a drawing of DEC's R210I.
R210L
is a drawing of DEC's R210L.
R210X
is a 'modernized' R210.
./DEC/Rxxx/R211: MB, PC, MA, (PDP8)
R211J
is a drawing of DEC's R211J.
R211K
needs a drawing.
R211L
needs a drawing.
R211X
is a 'modernized' R211.
./DEC/Rxxx/R212: MQ (PDP8), 2 FFs, SR, SL, Read-in, Clear
R212D
is a drawing of DEC's R212D.
R212F
is a drawing of DEC's R212F.
R212J
needs a drawing.
R212X
is a 'modernized' R212.
./DEC/Rxxx/R220: 3-Bit SR, Parallel Read-in, Diodes out for detecting all 0s in R111 node
R220J
is a drawing of DEC's R220J.
R220X
is a 'modernized' R220.
./DEC/Rxxx/R284: Quadraflop, PDP8, 4 stable states
./DEC/Rxxx/R302: 2 One-shots
R302J
is a drawing of DEC's R302J.
R302K
is a drawing of DEC's R302K.
R302L
is a drawing of DEC's R302L.
R302M
needs a drawing.
R302X
is a 'modernized' R302.
./DEC/Rxxx/R303: Integrating One Shot
R303D
needs a drawing.
R303X
is a 'modernized' R303.
./DEC/Rxxx/R401: Variable Clock, 30CPS to 2 MC
R401D
is a drawing of DEC's R401D.
R401F
is a drawing of DEC's R401F.
R401H
is a drawing of DEC's R401H.
R401X
is a 'modernized' R401.
./DEC/Rxxx/R405: Crystal Clock, 5KC to 2 Mc Available
R405H
is a drawing of DEC's R405H.
R405J
is a drawing of DEC's R405J.
R405X
is a 'modernized' R405.
./DEC/Rxxx/R406: Clock for PDP9/L, 1.5us
./DEC/Rxxx/R407: PDP9 Parity Clock, 1.2us
./DEC/Rxxx/R408: PDP8 Clock
./DEC/Rxxx/R409: PDP9 Clock (R405 configured for 1MC)
R409H
is a drawing of DEC's R409H.
R409J
is a drawing of DEC's R409J.
R409X
is a 'modernized' R409.
./DEC/Rxxx/R450: Variable Clock
R450E
is a drawing of DEC's R450E.
R450X
is a 'modernized' R450.
./DEC/Rxxx/R451: Teletype Clock, for faster teletype think R450
./DEC/Rxxx/R601: Pulse Amplifier, 6 DCD Gates, 100 or 400 ns pulses
R601F
is a drawing of DEC's R601F.
R601H
is a drawing of DEC's R601H.
R601X
is a 'modernized' R601.
./DEC/Rxxx/R602: Pulse Amplifier, 2 DCD Gates & 1 Diode Input each, 100 or 400 ns pulses
R602H
is a drawing of DEC's R602H.
R602K
is a drawing of DEC's R602K.
R602X
is a 'modernized' R602.
./DEC/Rxxx/R603: Pulse Amplifier, 3 circuits, 1 DCD Gate & 1 Diode Input each
R603D
is a drawing of DEC's R603D.
R603X
is a 'modernized' R603.
./DEC/Rxxx/R613: R603 that cannot be triggered from output, with 5 mA loads
R613B
is a drawing of DEC's R613B.
R613X
is a 'modernized' R613.
./DEC/Rxxx/R623: R603 with 400us pulse, R603 etch, retrofit for LINC-8
./DEC/Rxxx/R650: Bus Driver, 2 circuits, 2 Inputs & Node
R650BS1B
is a drawing of DEC's R650BS1B.
R650C
is a drawing of DEC's R650C.
R650E
is a drawing of DEC's R650E.
R650X
is a 'modernized' R650.
./DEC/Rxxx/R663: B163 with DEC 6534C (6 2-Input NANDs, 1 Input/Gate + 1 Input/Gate pair, 2mA fan-in)
./DEC/Sxxx: Sxxx Modules
./DEC/Sxxx/S107: R107 with 5 mA Clamp Loads
S107D
is a drawing of DEC's S107D.
S107S1A
is a drawing of DEC's S107S1A.
S107X
is a 'modernized' S107.
./DEC/Sxxx/S111: R111 with 5 mA Clamp Loads
S111E
is a drawing of DEC's S111E.
S111F
is a drawing of DEC's S111F.
S111X
is a 'modernized' RS111.
./DEC/Sxxx/S123: Diode Gate
S123B
is a drawing of DEC's S123B.
S123X
is a 'modernized' S123.
./DEC/Sxxx/S151: R151 with 5 mA Clamp Loads
S151A
is a drawing of DEC's S151A.
S151B
is a drawing of DEC's S151B.
S151D
is a drawing of DEC's S151D.
S151X
is a 'modernized' S151.
./DEC/Sxxx/S181: DC Carry Chain, 6 Interconnected Diode Gates + 1 Inverter
S181A
is a drawing of DEC's S181A.
S181C
is a drawing of DEC's S181C.
S181X
is a 'modernized' S181.
./DEC/Sxxx/S202: R202 with 5 mA Clamp Loads
S202D
is a drawing of DEC's S202D.
S202X
is a 'modernized' S202.
./DEC/Sxxx/S203: R203 with 5 mA Clamp Loads
S203D
is a drawing of DEC's S203D.
S203X
is a 'modernized' S203.
./DEC/Sxxx/S205: R205 Dual Flip Flop with 5 mA Clamp Loads
S205C
is a drawing of DEC's S205C.
S205D
is a drawing of DEC's S205D.
S205X
is a 'modernized' S205.
./DEC/Sxxx/S206: S205 Dual Flip Flop with 10mA clamp loads
./DEC/Sxxx/S284: R284 with 5 mA Clamp Loads
S284B
is a drawing of DEC's S284B.
S284X
is a 'modernized' S284.
./DEC/Sxxx/S602: R602 with 5 mA Clamp Loads
S602H
is a drawing of DEC's S602H.
S602K
is a drawing of DEC's S602K.
S602X
is a 'modernized' S602.
./DEC/Sxxx/S603: R603 with 5 mA Clamp Loads
R603D
is a drawing of DEC's R603D.
R603X
is a 'modernized' R603.
./DEC/TC08: TC08 Backplane
tc083-18
is a 3-18-2004 checkpoint of TC08 drawing in progress.
indicators
is an LED version of the TC08 Indicator panel.
so-indicators
is a surface mount version of the indicators board.
so-indicators-ok
is a backup of so-indicators.
tc08ss
is an experiment with routing one layer at a time.
tc08nh
is a successful routing without screw holes. (It also lacks an NC layer.)
tc08ttl
is an aborted attempt to convert to a "big board" TTL implementation.
tc08
is a drawing of DEC's TC08 DECtape Controller.
tc08-6u
is a drawing of DEC's TC08 DECtape Controller, drawn to fit in 6Uin a DEC rack.
tc08-8-07
is an 8/2007 checkpoint of the TC08 drawing. This one does have the hidden "NC" layer, to simplify routing and reduce spurious error messages.
./DEC/TR02x: TR02 Incremental Tape Controller
tr02
is a drawing of DEC's TR02 Incremental Tape Controller. So far, only one of the two drive's controllers is complete.
./DEC/VC8x: VC8i Compatible Posibus Device.
vc8
is a drawing of a VC8/I compatible device built out of flipchips. It is based on www.chd.dyndns.org/pdp8/VC8.
./DEC/Wxxx: Wxxx modules
./DEC/Wxxx/W002: 15 2mA Clamped Loads, W005 etch
W002B
is a drawing of DEC's W002B.
W002X
is a 'modernized' W002.
./DEC/Wxxx/W005: 15 Clamped Loads
W005B
is a drawing of DEC's W005B.
W005X
is a 'modernized' W005.
./DEC/Wxxx/W010: 10 10mA Cleamped loads to -15V
./DEC/Wxxx/W011: W021 but 3.25" long.
W011B
is a drawing of DEC's W011B.
W011X
is a 'modernized' W011.
./DEC/Wxxx/W012: Flexprint Indicator Cable, -15 +15 Signal, PDP10
./DEC/Wxxx/W013: Word Sink Stack Connector, W016 etc, PDP10, 2 1/2 D Memory
./DEC/Wxxx/W014: Digit Stack Connector, PDP10, 2 1/2 D Memory, modified W015 layout
./DEC/Wxxx/W017: Drive Cable Connector, PDP9 Memory
./DEC/Wxxx/W018: Cable Connector for Indicator Amplifiers (with diodes)
./DEC/Wxxx/W020: Indicator Cable Conn,. 18 ribbon cable, 1.5K resistors
./DEC/Wxxx/W021: Signal Cable Conn., 19 wire ribbon, D, E, H, K, M, P, S, T, V hot, 10 grounds: C, F, J, L, N, R, U
W021A
is a drawing of DEC's W021A.
W021B
is a drawing of DEC's W021B.
W021X
is a 'modernized' W021.
./DEC/Wxxx/W022: W021 with 100 ohm shunt terminators
./DEC/Wxxx/W023: 18 Line Ribbon Connector, component spaces near A & B, others straight through
W023A
is a drawing of DEC's W023A.
W023X
is a 'modernized' W023.
./DEC/Wxxx/W024: Coax Connector, 16-signals, split lug, short
W024X
is a 'modernized' W024.
./DEC/Wxxx/W025: 32 Split Lugs, 4 slots, double size, Memory Paddle used for W075
W025A
is a drawing of DEC's W025A.
W025X
is a 'modernized' W025.
./DEC/Wxxx/W026: 18 Split Lugs, diode and resistor termination
W026B
is a drawing of DEC's W026B.
W026X
is a 'modernized' W026.
./DEC/Wxxx/W027: Ribbon Cable Connector, 18 Signals with 3Kohm resistors, split lugs
./DEC/Wxxx/W028: W021 with lugs for series of shunt resistors or diodes in signal leads
W028A
is a drawing of DEC's W028A.
W028X
is a 'modernized' W028.
./DEC/Wxxx/W031: Flat Mylar Cable Connector, 9 Signals, 9 Grounds, short single
./DEC/Wxxx/W032: 5 shielded triples, DEC Tape Signal Connector, double
W032B
is a drawing of DEC's W032B.
W032X
is a 'modernized' W032.
./DEC/Wxxx/W033: Flexprint, W023 connections on "A" side, side entry cable
./DEC/Wxxx/W034: Flexprint, 16 connections on "B" side 10 ohms on A2, B2
./DEC/Wxxx/W035: Cable Connector
./DEC/Wxxx/W040: 2 Solenoid Drivers, 2 Inputs plus a node, 0.6A max, similar to 4113 + 4681
W040B
is a drawing of DEC's W040B.
W040X
is a 'modernized' W040.
./DEC/Wxxx/W042: 10 Amp Driver (double height, double width)
./DEC/Wxxx/W043: 2 Solenoid Drivers, 2 Inputs plus a node, 2.0A max, similar to W040
./DEC/Wxxx/W050: 7 Indicator/Solenoid Drivers, 30mA -20V max
W050C
is a drawing of DEC's W050C.
W050X
is a 'modernized' W050.
./DEC/Wxxx/W051: 7 Indicator/Solenoid Drivers, 100mA -15V max
./DEC/Wxxx/W061: 4 Relay Drivers, 250mA +55V max
./DEC/Wxxx/W070: Teletype Cable Connector, PDP8, PT08
W070C
is a drawing of DEC's W070C.
W070X
is a 'modernized' W070.
./DEC/Wxxx/W072: LINC-8 Scope Cable Connector
./DEC/Wxxx/W073: LINC-8 Tape Cable Connector
./DEC/Wxxx/W076: Teletype Connector, from Positive Logic 8/I, logic equivalent to W070
W076B
is a drawing of DEC's W076B.
W076D
is a drawing of DEC's W076D.
./DEC/Wxxx/W078: W076 with AMP connector instead of cable
W078
is a drawing of DEC's W078.
./DEC/Wxxx/W080: Isolated AC/DC Switch
./DEC/Wxxx/W100: Emitter Follower
./DEC/Wxxx/W101: I/O Bus Driver, similar to 4657
W101B
is a drawing of DEC's W101B.
./DEC/Wxxx/W102: Memory Bus Transceiver, 1665 type
./DEC/Wxxx/W103: Device Selector, PDP8, double
W103C
is a drawing of DEC's W103C.
W103X
is a 'modernized' W103.
./DEC/Wxxx/W104: PDP-9 I/O Bus Module
./DEC/Wxxx/W106: Priority Interrupt Grant
./DEC/Wxxx/W107: I/O Receiver, PDP10, 7 channels
./DEC/Wxxx/W108: Bipolar Decoding Driver, double
W108C
is a drawing of DEC's W108C.
W108X
is a 'modernized' W108.
./DEC/Wxxx/W122: Pulsed Bus Transceiver, pin compatible with W102 & W112, positive logic in, -bus, -logic out
./DEC/Wxxx/W132: Memory Bus Transceiver, KI10, negative bus, 4 circuits, similar to W102
./DEC/Wxxx/W250: 12 Indicator Drivers, flex print, ground & -15V from male end
./DEC/Wxxx/W300: Tapped 800ns Delay Lines with 50ns taps, 3 Output Amplifiers, replaced by W301
W300C
is a drawing of DEC's W300C.
./DEC/Wxxx/W301: Tapped 800ns Delay Lines with 50ns taps, W300 pins, different input loading and improved margins
./DEC/Wxxx/W404: DTR Jumper
./DEC/Wxxx/W500: High Impedance Follower, 7 circuits
./DEC/Wxxx/W501: Schmitt Trigger, +/-10V in, 0 and 03V out
W501F
is a drawing of DEC's W501F.
W501X
is a 'modernized' W501.
./DEC/Wxxx/W502: 2 Photon Coupled Triggers
./DEC/Wxxx/W504: Initial Transient Detector, A Schmitt, 0 delay, 10ms blackout
./DEC/Wxxx/W505: Low Voltage Detector, measures +10V & -15V
./DEC/Wxxx/W506: Power Monitor
W506C
is a drawing of DEC's W506C.
W506X
is a 'modernized' W506.
./DEC/Wxxx/W507: Low Voltage Detector, ME10, measures +5, +5, -15, -15, all reg, -15, +10 unreg, double
./DEC/Wxxx/W509: 3 phase AC Low Voltage Detector
./DEC/Wxxx/W510: Positive Level Convertor, 3 circuits, thresholds of 0, +1 or +2V; 0 & -3V out
./DEC/Wxxx/W511: Negative Level Convertor, 2 circuits, thresholds of 0, -1, -2V, -3V; 0 & -3V out
W511A
is a drawing of DEC's W511A.
W511X
is a 'modernized' W511.
./DEC/Wxxx/W512: Positive Level Converter, 7 circuits, thresholds of +1.6 or 0.8V for use with TTL; 0 & -3V out
W512A
is a drawing of DEC's W512A.
W512X
is a 'modernized' W512.
./DEC/Wxxx/W513: Negative Level Converter, 6 circuits, used in TU55
./DEC/Wxxx/W514: Positive Level Converter, 6 circuits, 100 ohm input
./DEC/Wxxx/W519: Power Sequence & Crowbar
./DEC/Wxxx/W520: Comparator, 3 differential circuits, 100mV resolution, like 1501 level converter
W520B
is a drawing of DEC's W520B.
W520X
is a 'modernized' W520.
./DEC/Wxxx/W532: Dual AC coupled Sense Amplifier, used on PDP8-S
W532B
is a drawing of DEC's W532B.
W532X
is a 'modernized' W532.
./DEC/Wxxx/W533: Dual Rectifying Slicer, was G803
W533A
is a drawing of DEC's W533A.
W533X
is a 'modernized' W533.
./DEC/Wxxx/W590: IBM N Line to DEC converter
./DEC/Wxxx/W591: Positive Bus to DEC converter, for Memorex, 0 to +3V, 8 MC, 5 channels, W592 pins
./DEC/Wxxx/W592: IBM 360 Bus to DEC Converter (non-inverting)
./DEC/Wxxx/W600: Negative Level Amplifier, like 1667, 3 inverting circuits
./DEC/Wxxx/W601: Positive Level Amplifier, 3 inverting circuits
./DEC/Wxxx/W602: Bipolar Level Amplifier, 3 circuits, EIA Line Interfacer
./DEC/Wxxx/W603: Positive Level Amplifier, 7 circuits
W603A
is a drawing of DEC's W603A.
W603B
is a drawing of DEC's W603B.
W603X
is a 'modernized' W603.
./DEC/Wxxx/W607: 3 Pulse Converters, positive or negarive, 70ns 2.5V pulse out
W607B
is a drawing of DEC's W607B.
./DEC/Wxxx/W612: Dual Pulse Amplifier, B602 pins, 120 & 320ns, Diode Output for "OR" Bus
./DEC/Wxxx/W640: 3 Pulse Converters, positive or negative, 400ns or 1us, 2.5V pulse out
W640D
is a drawing of DEC's W640D.
./DEC/Wxxx/W681: Scope Intensifier for 34 Display
./DEC/Wxxx/W682: Scope Intensifier, 0 to +3V step, delay 50 to 300ns, 400ns pulse (for VR12 & VR14)
./DEC/Wxxx/W690: DEC to IBM N Line Converter
./DEC/Wxxx/W692: DEC to IBM 360 Bus Driver
./DEC/Wxxx/W693: DEC to CTUL Converter
./DEC/Wxxx/W700: Switch Filter, 6 circuits, similar to 1703, used on W710
./DEC/Wxxx/W701: Input Network, for PDP8 Card Reader
./DEC/Wxxx/W702: Teletype Level Converter for DC10B Data Line Scanner
./DEC/Wxxx/W705: 3.6V Power Supply, triple width
W705A
is a drawing of DEC's W705A.
W705X
is a 'modernized' W705.
./DEC/Wxxx/W706: Teletype Receiver, 8-bit, 11 Unit Codes, double
W706C
is a drawing of DEC's W706C.
./DEC/Wxxx/W707: Teletype Transmitter, 8 bit, 2 unit stop code, double
W707F
is a drawing of DEC's W707F.
W707H
is a drawing of DEC's W707H.
W707L
is a drawing of DEC's W707L.
W707P
is a drawing of DEC's W707P.
./DEC/Wxxx/W708: Teletype Communications Interface
./DEC/Wxxx/W709: Divide by 16/64 Counter
./DEC/Wxxx/W714: Switch Module, 2 form C microswitches, no circuits, 9/I memory
./DEC/Wxxx/W726: 4 DC & 3 Differentiating Switch Filters, for positive logic, TU10
./DEC/Wxxx/W800: 2 Form A Reed Relays, similar to 1803
./DEC/Wxxx/W802: Relay Multiplexer, 8 Reed Relays, double
./DEC/Wxxx/W808: 2-2 Form A, 1/8 Amp 250V Relays
./DEC/Wxxx/W841: 1/2 W851 for 9 Coax
./DEC/Wxxx/W850: Connector, 2 double boards with W021 layout, frame, hold-down screw
./DEC/Wxxx/W851: Connector, similar to W850, W851 is card & components, BC10 is assembly & cable
./DEC/Wxxx/W852: W851 with no components, used in BC10C-xx, uses W851 board
./DEC/Wxxx/W900: Multilayer Externder, Long Double
./DEC/Wxxx/W940: Wire Wrappable Module, 50x 16 pin, extended quad
./DEC/Wxxx/W941: Wire Wrappable Module, 25x 16 pin, extended double
./DEC/Wxxx/W942: Wire Wrappable Module, 50x 16 pin, with sockets, extended quad
./DEC/Wxxx/W943: Wire Wrappable Module, 25x 16 pin, with sockets, extended double
./DEC/Wxxx/W950: Wire Wrappable Module, 30x 16 pin, 8x 24 pin, extended quad
./DEC/Wxxx/W951: Wire Wrappable Module, 15x 16 pin, 4x 24 pin, extended double
./DEC/Wxxx/W952: Wire Wrappable Module, 30x 16 pin, 8x 24 pin, with sockets, extended quad
W952
is a drawing of DEC's W952 Wire Wrap prototype board.
./DEC/Wxxx/W953: Wire Wrappable Module, 15x 16 pin, 4x 24 pin, with sockets, extended double
./DEC/Wxxx/W960: MSI Mounting Board (2 14-16 pin or 1 24 pin, all pins brought out)
W960
is a drawing of DEC's W960 MSI Mounting Board, which allows 16 and 24 pin DIP components to be connected to a DEC backplane.
./DEC/Wxxx/W964: Blank Universal Terminator, 28 pins, single 5", 50-09733 etch
W964
is a drawing of DEC's W964 Universal Terminator board.
./DEC/Wxxx/W966: Wire Wrappable Module, 42x 16 pin, 72 terminal fingers, I/O header, extended quad
./DEC/Wxxx/W967: Wire Wrappable Module, 42x 16 pin, 72 terminal fingers, I/O header, with sockets, extended quad
./DEC/Wxxx/W968: Collage Mounting Board, 72x 16 pin, extended quad
./DEC/Wxxx/W969: Collage Mounting Board, 36x 16 pin, extended double
./DEC/Wxxx/W970: Bare Board, 36 pins, no split lugs, similar to W990
./DEC/Wxxx/W971: Bare board, 72 pins, no lugs, similar to W991, double
./DEC/Wxxx/W972: Copper Clad, 36 pins, similar to W992
./DEC/Wxxx/W9720: Copper clad boad, both sides, extended single
./DEC/Wxxx/W9721: Copper clad boad, both sides, extended double
./DEC/Wxxx/W9722: Copper clad boad, both sides, extended quad
./DEC/Wxxx/W973: Bare Board, 72 pins, copper clad, similar to W993, double
./DEC/Wxxx/W974: Perforated single height board, 36 pins, 0.1" grid, contacts only
./DEC/Wxxx/W975: Perforated double height board, 72 pins, 0.1" grid, contacts only
W975
is a drawing of DEC's W975 double-height perfboard.
./DEC/Wxxx/W979: Collage Mounting Board, 18x 16 pin, double
./DEC/Wxxx/W980: Module Extender, single sided
./DEC/Wxxx/W982: Module Extender, double sided
./DEC/Wxxx/W983: Module Extender, double height double sided
./DEC/Wxxx/W984: Module Extender, extended double
./DEC/Wxxx/W985: System Module Adapter
./DEC/Wxxx/W987: Module Extender, extended quad
./DEC/Wxxx/W990: Blank Module, split lug for each of 18 pins
W990D
is a drawing of DEC's W990D.
W990X
is a 'modernized' W990.
./DEC/Wxxx/W991: Bare board, split lugs, 36 pins, double
./DEC/Wxxx/W992: Copper clad, 18 pins
./DEC/Wxxx/W993: Copper clad, 36 pins, double
./DEC/Wxxx/W994: Perforated Module, 0.2" centers, 18 lands
./DEC/Wxxx/W995: Perforated Module, 0.2" centers, 36 lands, double
./DEC/Wxxx/W998: Perforated single height board, 18 pins, 0.1" grid, contacts only
./DEC/Wxxx/W999: Perforated double height board, 36 pins, 0.1" grid, contacts only
./DEC/X127026: Misc. Function Control
12706
is an incomplete drawing of DEC's 127026 Misc. Function Control board.
./DEC/xR210: Straight-8 Accumulator
smt
is a incomplete, half-hearted attempt at a surface mount version of the R210 Straight-8 Accumulator board.
./DEC9601: Functional equivalent to DEC9601 chip.
DEC9601
is an attempt to draw an equivalent for the DEC 9601 monostable chip.
libTest
is an failed attempt to create and use a library part for the equivalent. (The libary part is full of DRC errors.)
./DS32-pdp8.net: DS32 replacement based on effort of Dave G. at www.pdp8.net.
ds32djg
follows Dave's schematic closely, laid out on one long and two standard paddles.
ds32
is a start on a "shrink" using SMT.
./EpromEmu: EPROM Emulator based on work of Philip Pemberton.
EpromEmu
is an adaptation of Philip Pemberton's EPROM emulator, which attaches to the parallel port of a PC.
./FlipChip: Flip Chip Edge Connector
EdgeConnector
is a gold plated edge connector (outer).
Outline
is a board outline to match EdgeConnector.
Alignment
is a drawing of an EdgeConnector overlaid on the board Outline.
OuterConnector
is an EdgeConnector aligned for the outer quad slots.
InnerConnector
is an EdgeConnector aligned for the inner quad slots.
ConnectorPair
is a pair of EdgeConnectors one inner, one outer.
proto
is a drawing of a single-height proto board.
proto2
is a drawing of a double-height proto board.
./FlipChipTester: Various ideas for a flip-chip tester.
io
is a copy of the I/O board, for reference and component placement.
TestJig
is an incomplete notion involving a PCI slot.
io2
is another copy of the I/O board.
iotst
is an early version of the tester, which connects the I/O board from the ConsoleEmu project to a DEC connector block.
cblockyeesh
is a messy connector block mounting board that attempts to give each socket it's own connection.
cblockyeeshok
is a version of connectorblockyeesh which is fully routed.
cblock-vrs
is a simple connector block board that uses paddle cards to connect up to four sockets.
tester-7410
is a version of the tester board that builds a latch for the OC line using a 7410.
pcbproto-.brd
is a panelization of two copies of the tester, connector block boards, and an experimental G888 board.
pcbproto.brd
is a newer version of the panelization, with silkscreen scripts run.
FlipChip.brd
is still a newer version of the panelization.
cblock
is a version of the connector block board, modified to implement four pairs of socket connections.
tester-2
is revision 2 of the tester board.
transducer
is a messy design for a transducer for negative logic, etc.
transistor
is another messy design for a transducer.
smb
is a surface mount transducer using FET's and whatnot.
small
is a simpler transducer using through-hole parts.
cd4007
is yet another transducer, this time using the 4007.
5transistor
is a transducer for positive or negative logic, implemented with five FETs.
3transistor
is a transducer for positive or negative logic, implemented with three FETs and a section of an LM139 comparator.
32pins
is a set of 32 transducers of the 3transistor variety.
tester
is the flipchip tester, revision 1 (similar to iotst).
tester-rp
is another copy of the flipchip tester, revision 1.
diodes
is an attempt to lay out diode level converters for the flipchip tester.
./H11-5: Heath H-11 Serial Card
h11-5
is drawing of the H11-5 serial controller card by Heathkit.
./IOB6120: IOB 6120 by Jim Kearney
iob6-r
is the "A" version from Jim Kearney.
iob7c
is the "B" version from Jim Kearney.
iob7cvrs
is iob7c with the silk-screen visible.
iob9avrs
is my first attempt at fixing the battery issue (single CE#, lots of read/write enables).
iob9bvrs
is my second attempt at fixing the battery issue (DS1321D, CE# per ramdisk, series batteries).
iob9cvrs
is the fixed "9C" version manufactured in 2009 (DS1321D with parallel batteries).
iob9xvrs
is iob9c re-routed with slightly beefed up power rails.
iob10avrs
is a copy of iob9c with the bottom side silkscreen glitch (RN2) fixed.
./KM11: KM-11 Debug flip-chip
km11
is my version of the KM11 debug flip-chip. (The one by Guy Sotomayor is much better.)
./LogoPanel: Logo Panel for the top of the rack.
8ipanelb
is the outline of an 8/i logo panel.
8ipanel
is an 8/i logo panel, drawn in Eagle.
./M1709: OMNIBUS Interface Foundation Module
M1709
is a drawing of DEC's M1709 Omnibus Interface Foundation (I/O prototyping) board.
./M452r: M452 Replacement based on MC14411
M452r
is a replacement for DEC's M452 Baud Rate Generator, based on the MC14411 baud rate generator chip.
./M452S: Simplified M452X that lays out.
M452sx
is a version of the M452 replacement based loosely on DEC's M8655.
M452s
is a crowded version of the M452 replacement that routes in a single layer.
./M452X: M452 Replacement -- M8655 Style
M452x
is a version of the M452 Baud Rate Generator based on the M8655, but not finished.
./mmu6100: MMU for the 6100 PDP-8 on a chip
error
is a schematic fragment of the error circuitry.
mmu6100
is an early incomplete attempt at a 6100 with an MMU.
mmu6100x
is another incomplete attempt at a 6100 with an MMU.
mmu6100cp
is a snapshot of a nearly complete 6100 with an MMU.
ts6907
is a timeshare enhancement for the EMC 6907 MMU for the 6100.
emc6907
is a drawing of the EMC6907 MMU used with the Intersil Intercept (not the Junior).
vrs6907
is my design for an EMC6907 MMU board with the timeshare features added.
./NTC08: Bogus TC08 clone in TTL.
nt08
is an early version of a mechanical translation of the TC08 DECtape controller into TTL.
ntc08
is a start at a "big-board" version of the TC08 DECtape controller.
./Overvoltage: Power Safety Switch
max486x
is a drawing using the max486x chips to isolate valuable circuits from power supply anomalies.
ncp346
is a drawing using the ncp346 chip to isolate valuable circuits from power supply anomalies.
./PCBShop: Boards sent out for fabrication.
./PCBShop/M452x: M452 Replacement Board (as fabbed)
M452x
is the version of the M452 replacement that was actually built.
./PCBShop/W076x: W076 Replacement Board (as fabbed)
w076x
is an old version of the W076 replacement.
w076o
is version of the W076 replacement as ordered from the board fab.
w076oAsBuilt
is a version that matches the blue-wire changes in the as-shipped assembled boards.
./PosiDMux: FPGA PDP-8 Demultiplexer to Posibus
8j-merge
is the paddle card used to interface to the Posibus device.
posidmux
is an attempt to design an interface between the XESS based FPGA implementation of the PDP-8 and older Posibus gear.
./PT08: PT08 TTY Interface
PT08
is a drawing of DEC's PT08 TTY Interface for the PDP-8/S.
PT08pos
is a thought experiment about a Posibus variation on DEC's PT08 TTY Interface for the PDP-8/S.
PT08ttl
is a Posibus TTY TTY Interface implemented in TTL.
PT08ttl2
is a Posibus TTY TTY Interface implemented in TTL with some bugs fixed.
PT08ttl3
is a Posibus TTY TTY Interface implemented in TTL, designed for a ribbon cable bus.
./RF08: RF08 Replacement
8x11
is an old version of all the boards for the RF08 replacement, panelized on an 8"x11" sheet.
RF08old
is an old version of the controller part of the RF08 replacement.
lights
is the debug display for the RF08 replacement.
drives
contains the "drives" for the RF08 replacement.
drivessop
contains a variation of drives that allows for the cheaper SMT versions of the SRAM chip.
RF08b
is the latest version of the controller for the RF08 replacement.
RF08bOmnibus
is an start on an Omnibus version.
./RF08/Old8x12: RF08 Replacement (Old Version)
writelockswitches
is the writelockswitches board from the DF32 project, for reference.
RS08-.brd
is the disk emulator from the DF32 project, for reference.
RF08-
is the disk emulator from the DF32 project, for reference.
DF32-revision-B
is revision B of the DF32 project, for reference.
DEC8i-buscon
is a slightly updated version of the paddle cable used with the DF32 project.
DEC8L-buscon
is a paddle cable similar to the BC08J.
busadapt
is the bus adaptor board from the DF32 project.
DF32-revision-C
is an attempted revision to the DF32 board.
DF32-revision-D
is another attempted revision to the DF32 board.
DataBreak
is some schematic musings about data break.
array
is a design for an RF08-sized "drive".
cmorris
is the board from the DF32 project, yet again.
foo
is a tangled attempt to route a revision to the DF32 project.
RF08bck
is a checkpoint of some early work on an RF08 board.
RF08x
is a much more complete attempt at an RF08 replacement.
RS08
is a fairly complete RS08 "drive" pair.
RF08nv
is a newer version of the RF08 replacement, that didn't route.
RF08indx.sch
is the RF08 schematic with an extra sheet for the indicators and their drivers.
RF08ind
is a routed oversize board with the controller and the indicators.
olimex
is the controller and the drives, without the indicators.
spe10
is a set of controller, drives and indicators in an 8"x12.6" panel.
swizzle
is a swizzle board to allow the use of new paddles (34 wire ribbons) with the DF32 project.
RF08-1
is a revision to the controller that doesn't quite route.
RF08
is just the RF08 controller, in the panel by itself.
olimex10
is the RF08 replacement controller, drives, and indicators, all on an olimex sized panel, with 10mil design rules.
./rs-232-20ma: RS-232 converter to go in the Logic Lab
loop-rs232o
is an older version of the current loop to RS-232 converter (CTS flow control only).
loop-rs232
is a slightly newer version of the current loop to RS-232 converter, with CTS or DTR flow control.
sel-driver.sch
is a schematic of the selector magnet driver card in the TTY.
./RX08: Posibus version of RX8E
RX08-
is an older version of the Posibus RX08 controller.
l8r
is a somewhat newer version of the Posibus RX08 controller.
RX08
is the Posibus RX08 controller, as ordered from the board fab.
RX8E
is a drawing of DEC's RX8E Omnibus controller.
RX08b
is a revision to address problems found in the prototype.
RX08c
is another revision to address problems found in the prototype.
RX08b19
is the Posibus RX08 Controller as of 04/19/2005.
asbuilt
is the Posibus RX08 Controller as built, with all the blue wires (so far).
RX08-8-9
is the 08/09/2005 version.
RX08-3-5-9
is the 03/05/2009 version.
kludge
is the schematic of the kludge daughter board being used to debug the prototype.
kludge2
is the schematic of the kludge daughter board being used to debug the prototype.
./RX08/RX08: The Posibus RX08 files as sent to the fab (prototype didn't work).
./RX8-Ulrich: RX8E to Posibus Adapter per Ulrich Fierz
rx08-ulrich
is a schematic for Ulrich Fierz's modifications to an 8/i and a TC08 to interface the RX8E.
pbusRX8E
is an attempt to modify Ulrich's design to remove the 8/i dependency.
rx08-vrs
is another attempt to modify Ulrich's design to remove the 8/i dependency, and makes the Omnibus connections more explicit.
./RXM: RX01/RX02 Emulation with a PC
rxm
is a drawing of Charles Dickman's card to interface emulate the RX02 with the parallel port of a PC.
./SMT-8: Thoughts about a discrete SMT PDP-8.
adapter
is a drawing of an adapter from the DEC connector to something more current and affordable (2x20 header).
r202smt
is an SMT version of the R202 flip-flop board.
./TU56x: TU56 Drive Emulation
tu56
is a drawing for a proposed TU56 replacement using anSD card.
tu56o
is a older, less flexible version.
./W076O: W076 for either RS-232 or Current Loop
w076o
is a board to implement M8655 style interface to RS-232 or current loop for machines which use DEC's W076 card.
./Watch: PIC based timepieces
bcdwatch
is a drawing of an SMT version of a BCD wrist-watch.
watch
is a drawing of an SMT version of a binary wrist-watch.
clock
is a drawing of a binary clock using a 5704 dot-matrix display.
./WireWrap: DEC Compatible Wire-Wrap boards
1highfront
is a single-height prototyping board for narrow DIPs up to 32 pins.
1high
is a single-height prototyping board for narrow DIPs up to 32 pins.
2high
is a double-height prototyping board for narrow DIPs up to 32 pins.
4high
is an Omnibus form-factor prototype card that will take DIP packages in narrow or wide form up to 42 pins.
./X: M452 Replacement
M452sx
is a drawing of a replacement for the M452 Baud Rate Generator based on the M8655 (doesn't route).
./X4915: DEC 4915 Reader Control for ASR-33.
4915.sch
is a schematic for DEC's 4915 Reader Control modifications for the ASR-33.
./X8iHenk: 8iPanel Driver boards for Henk
9iSwitches
needs a description.
DeMux
needs a description.
DeMux2
needs a description.
DeMux3
needs a description.
DeMuxRow
needs a description.
DeMuxRow2
needs a description.
LEDproto
needs a description.
LEDtemplate
needs a description.
regulator
needs a description.
slot1
needs a description.
./X8iPanel: PDP-8/i Front Panel PCB
foo
is a messed up version of the indicator PCB of an 8/i front panel.
M900dec
is a drawing of DEC's M900 paddle card, which contains the indicator drivers, as well as connecting to the front panel cabling.
M900
is my version of the M900 indicator driver card, which provides through-hole (ribbon cable header) connections as well as DEC's surface mount.
d-cs-8i-0-27
is a schematic of the M900 indicator sockets in the 8/i backplane.
8iPanelDec
is a drawing of DEC's indicator PCB, using the surface mount ribbon connectors.
8iPanel
is my version of the indicator PCB, allowing through-hole headers for ribbon connection, as well as DEC's original surface mount.
8iPanelLED
is a version of 8iPanel with current limiting resistors suitable for the use of LEDs instead of indicator lamps.
LEDPanel
is a version of 8iPanel with current limiting resistors suitable for the use of LEDs instead of indicator lamps.
LEDPanelmpsl
is a version of 8iPanel with current limiting resistors suitable for the use of LEDs instead of indicator lamps.
protol
is a version of my indicator panel, broken in two, so it could be ordered from a protoype shop.
proto2.brd
is a panelized set of six M900 boards, suitable for ordering from a prototype house.
8iSwitches
is a drawing of a replacement for the switches PCB.
8iSwitchesOK
is a checkpoint of the replacement for the switches PCB.
G793
is a pull-up and clamping module for the switch register of the PDP-8/i.
./XDS32: DS32 Disk Drive Emulation
ds32
is a preliminary drawing of a replacement for a DS32 disk drive, which would attach to a DEC RF08 controller.
./Xeltec: Replacement for Xeltec SuperPro interface card.
foo1
is a messed up old version of the SuperPro card.
fie
is a messed up old version of the SuperPro card.
SuperPro
is a replacement ISA card to interface the Xeltec SuperPro to a PC.
SuperPro-res-moved
is a newer version of the replacement ISA card to interface the Xeltec SuperPro to a PC.
./XMM8i: Memory extension for PDP-8/i.
mm8i
is a start on drawing the MM8/i memory extension.
./xRK08: RK01 Disk Controller for Posibus.
rk08i
is a start on drawing the RK08 disk controller.



Last updated on 09/27/14 10:53

vrs