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Looking for a new Amp or Preamp? If you're after tubes, post over here.

not yet in electronics but

I built a full wave power supply for an attic fan made in China that use to be solar (panel failed). I wanted it to stay on longer and during cloudy days. Just a timer and set to max voltage with a variac. Better than me going up in the hot summer attic and doing more insulating.

Eventually the motor shorted out and the diode heat melted the solder. I used 25 amp diodes and they were still good after.

For a couple years it worked quite well anyway. Now I have one that's 120vac.



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