Does anyone know what the Comparex 7/71 was?

http://imgur.com/a/guJlD I just learned of its existence from this set of images of hardware rescued from a nuclear power plant. Is it a dumb terminal? Industrial control gear? Something else? Thanks, -Chris -- Christopher Patti - Geek At Large | GTalk: cpa...@gmail.com | AIM: chrisfeohpatti

Re: Help identifying UNIBUS PDP-11 CPU upgrade

On Wed, Jun 28, 2017 at 11:02 AM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: > > From: Josh Dersch > > > I pulled the ... bootstrap boards from slot 3 ... The BOOT button > > causes the RUN light to momentarily flash, but that's about it. > > That's not too surprising.

RE: DECstation 220 - Out of Ideas?

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rob Jarratt > via cctalk > Sent: 28 June 2017 19:12 > To: 'shad' ; 'General Discussion: On-Topic and Off- > Topic Posts' > Subject: RE: DECstation 220 -

Re: Help identifying UNIBUS PDP-11 CPU upgrade

> On Jun 28, 2017, at 2:35 PM, Josh Dersch via cctalk > wrote: > > On Wed, Jun 28, 2017 at 11:02 AM, Noel Chiappa via cctalk < > cctalk@classiccmp.org> wrote: > >>> From: Josh Dersch >> >>> I pulled the ... bootstrap boards from slot 3 ... The BOOT button >>> causes

RE: DECstation 220 - Out of Ideas?

Hello, now you could try to check the voltages again, just to be sure the fault is not on the 245. Following the traces is of course obviously difficult, but if the board is really only two-sided (no internal signal layers), components are not too high, and you have a flatbed scanner, you could