Question about Washburn Amplifiers: 25 WATT Guitar Amplifier - Bad Dog - BD25R Car Audio Amplifier
Haven't worked on one of these in years, however, it's probably the same basic system. The filter cap(s) in the power supply normally serve to block the 60 hz AC hum, and they will be your most likely culprit. They can be anywhere from 100, 220, or 500 uf, and are usually the larger caps in the supply. They always used to put one on the output of a bridge rectifier, in case you have that design. Good luck, thanks for using FixYa, and hope this helps.
Posted on Aug 25, 2010
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Posted on Jan 02, 2017
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