Altair newbie -- missing chips
- Hello everyone,
I never got the chance to use an Altair, but...
I found an 8800bt in a dumpster about 15 years ago. It has been sitting
box, packed in foam for all that time. I rediscovered it a couple of
weeks ago and
started working on it. I pulled it apart and cleaned it (it really
wasn't that dirty).
Replaced the broken front panel switches, found some keys that fit the
lock and had the lock re-keyed to fit the keys. Then I replaced all the
the power supply, even though they didn't seem to have leaked. Last
night I turned
it on with no boards, just to test the power supply. It worked! All
The processor board is missing, so I bought one from EBay. Some of the
other boards have missing chips. The biggest problem now is that I
the part numbers for the missing parts. Where can I find parts lists?
part that I need right now is a 24-pin wide DIP that goes next to the
on the Turnkey Module. I can faintly see what I think is a Q, naming
Does anyone know what it is? My best guess is that the missing chip has
to do with the serial port.
The Turnkey Module has been modified. Traces are cut and several jumpers
installed. It looks like the onboard RAM has been disabled. I'm not
sure if this
has anything to do with the missing chip, but it does not look like it
On another note.. Does anyone have any idea how much a Pertec 8" floppy
should cost, or where I could get one? I have the controller cards
(with three missing
chips), but no drive or cable. I'm also looking for someone to copy
onto floppys for me assuming I can find a floppy drive (I'll provide the
there copyright issues with that?
I am having a lot of fun working on this old thing.
Larry D. Pyeatt, PhD.