RE: C64 power supply replacement

From: Raymond C. Bryan (
Date: 2004-01-10 18:14:52

That schematic leaves out the transformer which has separate taps for 
9V AC and the regulated +5 V.  The commodore supplies are vulnerable 
to blowing fuses in the 9V AC line (even on the C128 where the fuse 
is replaceable).  I would still recommend a fuse in the 9VAC line in 
any replacement that you make.

The Commodore folk claimed that the epoxy "potting" stuff was for 
conducting heat away.

>In case you can't read ACCEL schematics, here's the same thing in .PNG

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