[vcf-midatlantic] What projects are you working on?
Dave McGuire
mcguire at neurotica.com
Mon Dec 28 19:02:45 EST 2020
On 12/28/20 1:00 PM, Jeffrey Brace via vcf-midatlantic wrote:
> During this time of year many of us are off work or inside for one reason
> or another.
> I'm curious what projects everyone is working on.
I'm always "inside". That's where I belong. ;)
This being one of those rare occasions where I'm actually doing
something for *me*, I'm in the process of resurrecting my old IMSAI
system. The only thing "IMSAI" about it is chassis, no IMSAI
boards...it's got a CCS 2810A CPU, a DRC/Tanner 64KB RAM board that I
built ~36 years ago, and a Tarbell disk controller. (and several other
boards of course, but that's the core of the system)
It was originally in a nice ECT chassis when I got it in 1984 or so,
but I bought the IMSAI chassis at TCF (of 1985 I think) for fifty bucks,
and transplanted it. I lost track of the ECT chassis, probably sold it
but don't remember, but I purchased another one (these are quite rare)
from Jeff Galinat a year ago. I'll build another system in that,
probably with a stack of new S-100 boards from the John Monahan side of
the world.
My original 8" drives are long gone (don't know where they went) but
I've replaced them. All of my disks appear to have been lost, which
sucks a lot, so I'm re-porting CP/M 2.2 to the system, writing a new
BIOS. I've not done that in awhile, but it's like riding a bike.
It sure is nice seeing those lights blink again. I'd not powered
this machine up in probably 32 years. Seven or eight tantalum
capacitors doing their popcorn impression, but no other issues thus far.
Other than that, I'm writing some ARM firmware for a client, and
working on various random things for LSSM.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
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