From: Columbia Valley Maker Space
The unit starts up and displays some data on the
displays
You're lucky that worked. Old power supplies need to be brought back to
life in stages.
something I can enter via the keypad. ... if you are
going to suggest
some tests, I need complete instructions. I don't know how to modify a
memory location, let alone enter and check a program.
Find all the PDP-8/A documentation online that you can (e.g. Bitsavers) and
download and read it; that will cover how to use the front panel.
Noel