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Hello!
Rumour has it that stacked power supply required to use same power transformer for both driver and output section and the transformer must be carefully wound with special attention. Is that really true????
Thanks!
Follow Ups:
Being "separated by a common language", I am not certain what circuit you are thinking of.
Assuming you are thinking of a bipolar full-wave bridge rectified power supply, with the most negative output grounded, then the most positive output will be a twice the normal voltage for which the transformer was (probably) designed. This could pose problems - you'd have to ask the manufacturer whether the insulation is acceptable in this application.
Most often, the term "stacked" means two independent power supplies, with the negative of one attached to the positive of the other. Again in this case, the most positive voltage is much higher than the transformer was probably designed for.
I working of refurbishing a nice old tv station power supply with one 350-0-350 and one 325-0-325 having the 5volt supplies for both. It has all paper and oil and amazing compactness of it 4 chokes. Something I would never attempt to replicate. I was tempted to stack them for a komuro like amp until l I thought about what could happen. So I decided to just use them on the one ground for driver and output supplys.I think the kumuro amp uses a utc trans for both supplies with a doubler on one.
amazing amp.
Edits: 07/23/15
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