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Capacitor/ Volume Pot¡ [message #28090]

Sun, 07 March 2021 22:05

jammy5152
Messages: 62
Registered: May 2018
Location: Georgia

Member

I was wondering what a .33 uf Capacitor does when it's connected to a pole on the volume pot and other leg is grounded??Would this cause a hum in the Amp?? Does it have something to do with low ( Bass ) sound of the
amplifier...System board # is 5116..

[Updated on: Sun, 07 March 2021 22:06]

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Re: Capacitor/ Volume Pot¡ [message #28091 is a reply to message #28090]

Mon, 08 March 2021 07:06

stevem
Messages: 4775
Registered: June 2004
Location: NY

Senior Member

A cap hooked up like that is called a low pass filter and will reduce the highs, however it will not be the sourse of a hum issue if that's what your tracking down.

You can use a simple voltmeter set for low AC volts to track down the sourse of a hum in a D.C. Power supply.

These amps run on what's called a duel rail power supply , that is positive and negative voltages and if one rail has a problem and the two D.C. Voltages are more then 2 volts or so off from each other then the amp will have a hum heard out of the speaker.

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Re: Capacitor/ Volume Pot¡ [message #28538 is a reply to message #28091]

Sat, 16 April 2022 10:02

jammy5152
Messages: 62
Registered: May 2018
Location: Georgia

Member

Excellant ...Thanks for the input!!

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