VintageKustom.com: Comment Board

Re: Amp ID [message #27644 is a reply to message #27637]

Sun, 19 January 2020 06:20

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

On those two model combo amps most everything is on the board .
This means they bring onto the amp board A/C voltage to the 4 rectifier diodes and the pilot lamp.

The fix is to remove the diodes from the board and mount a new type full case rectifier bridge diode set up to the chassis.

The fix for the pilot lamp is to cut the circuit traces off at the lamp and then run a tightly twisted pair of wires back to the part of the board that feeds the lamp so as to no use that circuit trace.

If I recall right the lamp mod will remove the most idle hum from the amp.

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