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Project Head Box SE 2 Amplifier Repair



Published
Fault
Loud 100Hz Power Hum present on both channels.

The video shows the two power supply smoothing capacitors
2200uF 25 Volt.

One of the capacitors had vented, and when removed and tested measured open circuit.

Rubycon replacement capacitors fitted fixing the issue.

The volume potentiometers were cleaned with De-Oxit to ensure noise free operation.

Unit fully tested working correctly.
Category
Audio
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