26 Jun
2025
26 Jun
'25
11:26 a.m.
Paul Anderson <useddec(a)gmail.com> wrote:
If you have an original 11/03, I have a dozen or so
H780 power supplies,
which are very hard to find. They are also used in the Vax 11/780 front
end, the RKV11-D and possibly a few other items.
Wow, someone who actually knows about the RKV11-D!!! I've had DEC
people visit my place, see the RKV11-D, and proclaim that "DEC never
made that!". Since you know what it is, can you tell us anything about
how it came to be, and why it is so little-known?
I bought mine back in 1978 or so from Newman Computer Exchange for
my 11/03. I later added the missing wires (and chip) to enable 18-bit
addressing when I got an 11/73. I haven't used it since I moved to
Oregon six years ago, but it would take just a few hours to remove
the RK05 head locks and plug things in, assuming that all the
capacitors are still good.
It came in handy to prove to the RSX development group that RSX-11M
version 2.0 would run on an 11/73. :-)
Alan Frisbie