PDP8/a Initial Power Up

Michael Thompson michael.99.thompson at gmail.com
Fri Nov 2 13:08:57 CDT 2018

> Date: Fri, 02 Nov 2018 08:56:08 -0700
> From: Columbia Valley Maker Space <info at cvmakerspace.ca>
> Subject: PDP8/a Initial Power Up
> Hello everyone - my first post, so be easy on me!
> I have just acquired a PDP8/a and a Remex punch tape reader. The unit
> starts up and displays some data on the displays, and that is about all
> I can tell you.
> I am going to do some googling about this, but I am looking for basic
> initial tests .... something I can enter via the keypad.
> I learnt some basic programming in 1978 on a PDP8, but that was the last
> time I touched one, so 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. I will pick all this back up very
> quickly and I do use computers in my work a lot - I am also an
> electronic hobby guy and have been for years. My point is I am OK with
> component level measurements, I have a scope and probes, etc.
> So there you go - hope to hear back form you guys.
> Cheers,
> Brian
> --
> Brian McIntosh
> Columbia Valley Maker Space Communications Guy
> info at cvmakerspace.ca
> 250 270 0689

Try the toggle-in tests that are here:

Michael Thompson

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