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Psu Help Plz ...
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Old 13th March 2005, 11:42 AM   #1
Ahmad_tbp is offline Ahmad_tbp  United States
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Default Psu Help Plz ...

hi everybody ...
how can i built a 90v 3-5a heavy duty PSU without using a transformer for my amp ? ( just like computer s power supply )
thank u all ...
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Old 13th March 2005, 04:07 PM   #2
Eva is offline Eva  Spain
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Computer power supplies allways use transformers but they operate at around 35,000Hz instead of the classic 50Hz thus reducing dramatically transformer size
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