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Re: Saying Hi! [message #27203 is a reply to message #27201]

Sun, 17 February 2019 06:22

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

Hello and welcome!
You have a great amp thetre with a much lauded Altec 421 model bass driver!
The scratchy pots/ controls on these latter type boards are not easy to clean & lube up, as they are such that thetre big open slot area where you want to get the spray in is on the circuit board side that they are mounted on.

What I now do is remove the board and with my Dremel tool with a grinding stone in it grind on the top of the control at its rear until I am almost thru, then I carefully poke thru it with a sharp metal scribe.
I make a hole just big enough to get the spray tube in .
Note that when you grind you should hold the board such that the metal grinding fall away from the board.

The other way to get this done is to use a solder sucker and in-solder each pot that needs to be cleaned & lubed.

By the way that Altec speaker in the amp is worth the 150 bucks you payed for the amp!

[Updated on: Sun, 17 February 2019 06:23]

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