13 Nov
2015
13 Nov
'15
6:43 p.m.
On Fri, Nov 13, 2015 at 2:52 PM, js at cimmeri.com <js at cimmeri.com> wrote:
On 11/13/2015 5:45 PM, Josh Dersch wrote:
Total issues over the past year or so were:
- Power supply needed some work.
- CPU non-functional: traced down to a pair of microcode PROMs with bitrot;
regenerated PROM images from the original service manual scans on
Bitsavers. (Ugh)
- Dead 128 word region in 8KW core plane: Traced down to a broken wire on
the core mat; unfixable (by me at any rate). Lucked into a cheap (and
fortunately working!) replacement on eBay a couple of weeks back.
- Bad Boxer fan (completely dead, likely the cause of the PROM failures due
to overheating many years back...)
- Failing diagnostics: traced down to operator error on my part
(misjumpered SLU interrupt vector).
Hey all --
Now that I have my PDP-11/05 running nicely,
What did you end up doing to arrive at that functionality? Did I miss
some emails?
I'm curious what others are
Yes. "viable" in this case translates to "I have the parts on hand, or
parts are easy to come by."
Thanks,
- Josh
running on small systems like this -- until this
point I've only played
with larger (i.e. at least 28KW memory) systems. I have only 8KW of
memory
(with no viable options for expansion)
Can't MOS memory be put on the Unibus in an expansion chassis?
and there's not much out there that
> I've found. There's paper-tape BASIC (which is always fun) and FOCAL, and
> PTS-11 (http://iamvirtual.ca/PDP-11/PTS-11/PTS-11.htm) which is pretty
> cool
> if a bit cumbersome. Any other suggestions?
>
> I'm also curious if any version of RT-11 that supports the TU58 could be
> made to run on this system -- I have two SLUs in the system so in theory I
> can boot from an emulated TU58. However RT-11 4.0's SYSGEN manuals suggest
> that 12KW is the minimum supported (and experimentation bears this out)
> and
> I can't find much in the way of manuals for RT-11 V3B -- which I believe
> is
> the earliest version with TU58 support. (V3B seems to be different enough
> from later versions that I'm not quite sure how the SYSGEN process works.)
>
> Thanks as always,
> Josh
>
>
>