PDP-12 at the RICM

Kip Koon computerdoc at sc.rr.com
Mon Jul 13 00:52:09 CDT 2015

Hi Michael,
I would be most interested in finding out more about this effort.  Do you have ongoing pictures documenting this effort?  I'd love to have a PDP 8, 11, 12 someday, but I don't have the space for something like that much less the cost involved so I'll have to be satisfied with emulators on my PC or eventually building one or more of these systems with current technology like the SBC6120 if memory serves.  Are there other possible alternatives?  I used a PDP-8/E in high school and college and have been quite interested in the high capability PDPs like the PDP-11 Series for starters.  I didn't know there were PDP 12 Series computers.  Are there other PDP series computers as well?  Congratulations on your restoration efforts!  I wish I could see what all you guys have been and are up to!  Take care my friends.

Kip Koon
computerdoc at sc.rr.com

> -----Original Message-----
> From: cctech [mailto:cctech-bounces at classiccmp.org] On Behalf Of Michael Thompson
> Sent: Sunday, July 12, 2015 7:32 PM
> To: cctech
> Subject: Re: PDP-12 at the RICM
> The RICM Learning Lab was nice and cool today so we spent the afternoon chasing the "LGP GP=GPC PRESET" in the TC12 LINCtape
> controller. With a logic analyzer connected to lots of the TC12 signals were were able to chase down the signal that is causing the
> fault. We are now not sure if the signal behavior we observed is the correct behavior, and there is a fault elsewhere. More debugging
> time and more studying of the documentation is required.
> --
> Michael Thompson

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