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Old May 1st 06, 06:10 PM posted to rec.radio.amateur.homebrew
James Thompson
 
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Default power transformers
Has anyone re-wound a power transformer with good results?
I have salvaged some big transformers from microwave ovens, and cut the
secondary winding out of it. Then re-wound it with 14 guage till getting
enough turns to produce about 20 volts. Problem is the thing gets hot even
without a load on it.
Is there something I am overlooking? Thanks.


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