Capacitor values for original PET power supply?

[Ethan Dicks]

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 & 
> http://yahozna.dyndns.org/scratch/hackedpet2.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
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Ethan.Dicks at usap.gov            http://penguincentral.com/penguincentral.html