PDP-12 restauration in center Germany (J?rg Hoppe)

Michael Thompson michael.99.thompson at gmail.com
Sun Jan 10 12:26:31 CST 2016

> Date: Sun, 10 Jan 2016 17:16:17 +0100
> From: J?rg Hoppe <j_hoppe at t-online.de>
> Subject: PDP-12 restauration in center Germany
> Hi,
> in case somebody needs companions for cross-tests or likes to exchange
> thoughts:
> A few month ago we bought a PDP-12 and are restoring she since then.
> There is no online-diary about progress (the maching is eating up all
> time), but see here:
> http://c-c-g.de/index.php?option=com_content&view=article&id=311:pdp12-gekauft&catid=100&Itemid=50
> The 12 is complete with no visible damages and has some undocumented
> add-ons (they always have).
> Especially a MOS memory extension was plugged off very soon.
> Luckily we could organize an 95% complete 2nd module set.
> After console exchange (we had indeed a 2nd one!) and much trouble with
> cpu logic,
> we can now execute opcodes with DO and FILL/EXAM the core memory.
> Contact me if you like to visit us, we're sitting near G?ttingen
> (between Kassel and Hannover).
> Joerg


Take a look at a picture of our PDP-12. It has a PDP-8/I next to it as in
your picture.

We also have MAI and Wang systems.

Michael Thompson

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