How to repair a Dirty pot on Amp (hissing)??? - Page 3 - diyAudio
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Old 27th April 2002, 03:37 AM   #21
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If you want to check if it's hissing pot or not connect the input pin with the output pin on the pot and you will effectively have the pot out of the signal path. The output pin is usually the one in the center and the input pin is the the one on the right (when the pins are facing down and you are facing the shaft)
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Old 27th April 2002, 06:43 AM   #22
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Exclamation "special" grease

I use Vegemite thinned a bit with Foster's mate.
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Old 27th April 2002, 08:21 PM   #23
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Ahh, ok, Ill try HPotters trick (thanks for that), and see how it goes.

If its not the pot, I think I'll throw it out and get a new 1.

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Old 28th April 2002, 11:56 AM   #24
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Default Greatz

In my old valve radio brand Greatz (dated ~1940) ther is one volume pot very high resistance i think 1MOhm and gues whatot in 2002 is still quiet and works OK.Radio works but when get hot sound become distort cause resistors and capacitors are almost destroyed by time.
Brand Greatz is german,and has produce high quality products for that thime,german ppl here probaly remember,specialy older ones
Just something to think about.
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Old 29th April 2002, 02:14 AM   #25
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Harry, Aussies don't drink Fosters - We export because we don't like it.
In Oz, it is otherwise known as 'Girl's Beer'.

Regarding using WD40 - Repeat after me 'Never, Never , Ever use this junk on electronics !'.
Reason is that it dries and leaves a tough film on the carbon track that guarantees that the wiper makes intermittent contact.

I have found Cramolin Contaclean to work fine on rotary pots and faders.
I believe Caig Deoxit to be very good also.

Regards, Eric.
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Old 29th April 2002, 02:53 AM   #26
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King of Feedback:

Just what I suspected all along. Figured it came in such a large can because it was for the nancy boys. Made them look macho without them getting plastered.

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Old 29th April 2002, 03:33 AM   #27
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Thanks Jocko,
We also have the 'Darwin Stubby'.
The don't think these are for the 'girls'.
I don't know this guy, but here is some Perth local humour -
Scroll down to find the Darwin Stubby.
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