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They were made for CBM by the

They were made for CBM by the boatload, they got warm and were not rated for things like teh CBM cartridge, etc, though they would continue to make voltage they would just run hotter reducing their life.
Potting them was probably to protect CBM as it's hard to start a fire from withing a pound of epoxy.  The potting would have made the hotest componets slightly less hot and everythig else too hot. 
Remember that the VIC 1 had started at least one fire, I think something like 3.  The case used to melt and sage over one of the heat sinks.  Supposedly a programmer tried to design apiece of teh power supply without really knowing heat and wattage caculations.  So a good reaction would be a supply that never caught fire, was impervioous to staiuc and even water, and was a bitch to air ship. 
I specifically put a fuse back iun teh C128, mostly because we had gone to a switching supply which would not "just run hotter" when overloaded.  They rtried to take the fuse out, I found ways to keep it in including how we filed for UL. I was told that they eliminated teh fuse anyways after I left.

Re: They were made for CBM by the

Bil Herd wrote:

> I specifically put a fuse back iun teh C128, mostly because we had gone to a switching supply which would not "just run hotter" when overloaded. They rtried to take the fuse
> out, I found ways to keep it in including how we filed for UL. I was told that they eliminated teh fuse anyways after I left.

In all the C128 power supplies that I've seen, a fuse is always in them.

Truly,
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug
The Other Group of Amigoids
http://www.calweb.com/~rabel1/
Southern California Commodore & Amiga Network
http://www.sccaners.org

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