Gianmario.Scotti_at_nokia.com
Date: 2004-01-10 19:19:19
A transformer doesn't have separate taps for 9 V AC *AND* regulated 5 V :o)
And I did put a fuse in the 9 V AC line in the schematic.
Anyway, my schematic was really a quick design, nothing to be proud of, but I am not convinced that it's flawed. And I'm not convinced that the original CBM design wasn't flawed, either.
> -----Original Message-----
> From: owner-cbm-hackers@cling.gu.se
> [mailto:owner-cbm-hackers@cling.gu.se]On Behalf Of ext
> Raymond C. Bryan
> Sent: 10 January, 2004 19:15
> To: cbm-hackers@cling.gu.se
> Subject: RE: C64 power supply replacement
>
>
> 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.
> --Ray
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