Quote:
Originally Posted by Gabe001
... The hardest part is finding a low voltage ac source ... If you are tempted to put 6.3v AC in the secondary, remember that it will translate to quite a high voltage on the primary.
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General purpose mains transformers quite often used to have a 0V-4V-5V winding for driving 4V-heater or 5V-heater rectifiers. You get a little over 1V between the 4V and 5V terminals when the transformer's running off-load.
Cheers,
GJ