Re: [midatlanticretro] Re: So... Who's coming this weekend? And what should I bring?
- On 06/29/2012 11:06 AM, s100doctor wrote:
> http://bitsavers.org/pdf/dec/pdp11/1105/11/05 CPU cards don't. Precisely three have hit eBay in the past 4-5
> may have sufficient hardware docs, otherwise look around if you don't have them already. "bring" them on a laptop.
> These old cards go by on eBay but there's none there today.
years. The 11/05 is one of the earliest PDP-11s, from 1972. Not many
of these systems were made (comparatively speaking), and they dried up
many years ago.
Other Unibus cards, appropriate for use in that system, aren't tough
to find. The two CPU boards, though, really need to be repaired because
finding replacements is nearly impossible now.
Dave McGuire, AK4HZ
New Kensington, PA
- Glad Ian has done a fair amount of testing and diagnosis down to the chips. But...it's too much work to diagnose chips by email. (shrug) so I respect his analysis but won't reply to it.
Reading between the lines, Ian needs a set of bus extenders to expedite his work, and maybe better schematics. Someone with 11/05 prints or photocopies of them would expedite his work.
I misplaced my DEC bus extenders, I actually looked for them. But Gesswein will bring his.