Capacitor values for original PET power supply?
ethan.dicks at usap.gov
Tue May 20 06:15:56 CDT 2008
On Mon, May 19, 2008 at 12:21:23AM -0700, Josh Dersch wrote:
> Picked up an original PET 2001-8 awhile back that's been heavily (and I
> do mean heavily) modified at various points in its history by someone
> with very odd design aesthetics. (See pic at
> http://yahozna.dyndns.org/scratch/hackedpet.jpg &
That's one crowded PET.
The memory board looks interesting - any idea what was meant to go
in the cartridge slots?
> Various parts were hacked in and hot glued (!!) in place or just left to
> dangle. When I got it everything was loose inside. There's an
> Expandamem board and some homebrew job with some eproms and some hackery
> connected to the internal cassette port.
The cassette ports were common to tap for +5V.
> Anyone know what the original power supply capacitor was for this
> thing? I've found parts lists & schematics for the main PCB, video &
> voltage regulator but none of them appear to list this. (I'd also be
> interested in knowing the transformer specs & wiring, since I'm probably
> going to have to rewire that...)
My PETs are at home, but there should be some info in the classiccmp
archives about the transformer - I was asking about the amperages
since I have a couple of bare PET boards with me that I plan to fire up.
Ethan Dicks, A-333-S Current South Pole Weather at 20-May-2008 at 11:10 Z
South Pole Station
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Ethan.Dicks at usap.gov http://penguincentral.com/penguincentral.html
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