Anyone know what these transistor cards went with?

[tgarnold]

They have the same connectors. The transistors are GE, but not labeled with any useful info. Here are some links to short videos of them.

Transistor computer board #1

Transistor computer board #2

 

[Al Kossow]

The P series part numbers looks like something GE would have used. The green board seems to have a 1975 date code.
The phenolic board on the right looks earlier, but it has a 1976 date code.
There isn't much information around on such things, I'm guessing something process control related
I don't have any information after the late 60's from GE