On 2013-09-13, at 21:57, Gerrit Heitsch wrote: >>> Does anyone have ideas (or could point to a person or company) that might have a way to safely synthesize an isolated 9VAC for the machines from 5VDC? >> >> Yes, that's one of the things, I'd like to see solved for good as well. I was approaching it from different angles. Even "invented" PWM based sine-wave generation once before sleep ;-) The problem always was that in the end one needs a transformer, which is what I always wanted to avoid in the first place.. > > You can't. There is no way around a transformer in this case. > > The only other way is a serious redesign of the C64 power supply (the part on the C64 board). That was my conclusion as well. Actually AFAIR I ended up having virtually everything covered, except the USER PORT supply pins of course. Unfortunately this was not feasible as a generic solution. -- SD! Message was sent through the cbm-hackers mailing listReceived on 2013-09-13 21:00:04
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