8 Aug
2012
8 Aug
'12
10:39 a.m.
On 8 Aug 2012 at 11:37, Allison wrote:
its important to note the original MITS-8800 PS was a
peice of crap
and the 8800A is what you want. I have the pre-A original version and
that does not carry more than a few boards before the -8V and +12V
droops badly. The transformers and filter caps were too small.
Thanks for pointing that out! I've sometimes thought that if I
pulled my old 8800 down off the shelf and tried to get it going
again, the first thing I'd do would be to rework the power supply to
make it something less half-assed ("quarter-assed?"). But I guess
that would destroy the historical cachet of the thing, so it'll sit
around some more. The last time I powered it on about 15 years ago,
you could see the AC ripple in the front-panel LEDs.
--Chuck