Commodore 64 Power Supply

[Roy J. Tellason]

On Tuesday 01 July 2008 13:48, Eric J Korpela wrote:
> I haven't looked at the AC circuitry in the C64, is it dependent on
> the input being AC?  I've a fair amount of equipment that ships with
> an AC wall wart that is perfectly fine with DC.  If all the AC is
> doing is feeding a rectifier that can handle the full current through
> any path, DC would probably do the job.
>
> If there's actual items that require AC (transformers, things that
> generate clocks from the AC), then, of course, it won't work.

One of the things it feeds is a voltage doubler circuit the output of which is 
fed to the 7812 +12V regulator.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin