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In Reply to: RE: DIY amplifier for current hungry speakers question. posted by Paul Joppa on January 05, 2017 at 09:16:13
Thats not totally correct tranformers are voltage step or step down devices not current step up or step down.
Lawrence
Follow Ups:
Read up a little on transformers. A filament transformer will take 1 amp at 120 volts to create 12 amps at 10 volts. Both current and voltage "transformations" are characteristics of transformers. You may be thinking of a resistor network.
The power ratio through a transformer always remains the same negating small internal losses.So how do you keep the power ratio the same by only changing the voltage and not the current?
To answer the OP, the power on the OPT secondary will be that of the power into the primary minus some slight resistance loses.
Edits: 01/05/17 01/05/17
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