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I Think I Just Screwed Up My Jmp-1 Preamp


bzdup

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I hope someone can help me. I sprayed my volume pot on my preamp with Caig Deoxit. I turned it back and forth a couple of times. I sprayed inside the pot, was I supposed to do that? So now the pot doesn't even work. When I adjust the volume and what not it doesn't change anything.

So I 'm screwed now, right?

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You're probably going to have to replace that pot. As I remember, that preamp is pretty tight, so unless you've got a fair amount of experience with electronic repair, I'd recommend taking it to an amp tech. And lose the can of DeOxit, and get some old-fashioned TV tuner cleaner at your local Radio Shack - it won't strip the barnacles off a ship's hull, but at least it won't screw up your pots.

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You're probably going to have to replace that pot. As I remember, that preamp is pretty tight, so unless you've got a fair amount of experience with electronic repair, I'd recommend taking it to an amp tech. And lose the can of DeOxit, and get some old-fashioned TV tuner cleaner at your local Radio Shack - it won't strip the barnacles off a ship's hull, but at least it won't screw up your pots.

Thanks man. Yeah, it is pretty tight. My parents put together computers, I was thinking about taking it to one of their techs and seeing if they can fix it.

So the deoxit is crap, huh? Some people swear by it some say it kills pots. Why does it kill pots?

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Well, it doesn't kill all pots (it probably doesn't kill most), but it's definitely killed enough for me to just avoid it. Tuner cleaner doesn't, so it's my choice.

That's so weird. So even if you do everything right, sometimes the pot just dies? sorry to be so inquisitive, I just don't understand pots that well.

Another thing, Are you supposed to spray inside the pot where the parts are moving?

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No, you did everything right, spraying inside the pot is the only way to get cleaner to the element - you just learned about DeOxit the same way I did! :D Older carbon composition pots seem to be pretty much immune to it, but a lot of newer pots, especially those with conductive plastic elements, simply can't handle whatever solvents are in it. That's progress. BTW, DeOxit works great on metal contacts and open frame switches or relays (at least in my experience).

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