32K Memory for Omnibus

Here is one possible solution to the interference fit issue with the PDP-8/A.

Rotate the battery holder nearly 180 degrees, and install it between the rightmost battery holder GND hole and pin 1 of the IC prototype area to the left. The result should look like the lower photo.

Install a blue wire connecting the leftmost pin 1 land to the lowest battery holder "+" hole. The result should look something like the photo.

Proceed with board assembly. Don't forget to tape the "pin 1" area, as that is now also carrying battery voltage 24/7. Your result, when installed should now easily clear the card guides as shown in the photo.

Last updated on 06/14/14 10:53