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StompBoxZone • View topic - Knob/Pot Has No Resistance

Knob/Pot Has No Resistance

Knob/Pot Has No Resistance

Postby Mustang Martigan » Tue Nov 14, 2017 1:52 am

One of the knobs on a pedal of mine has no resistance. It still changes the value when turned, but it's so sensitive that I could probably blow on it and it would turn. This makes is really difficult to dial in a specific setting.

I'm pretty sure it's not the knob needing to be tightened to the pot shaft because, as I said, the values still change. Any suggestions on how I can fix this? It's a Blues Pearl Blue Balls pedal.

Thanks
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Re: Knob/Pot Has No Resistance

Postby charmonder » Tue Nov 14, 2017 9:21 am

sounds like damage, sometimes you get a scratchy pot that you can rinse out with DeOxit spray, but this pedal is too new. Maybe something got dropped on that pot?
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Re: Knob/Pot Has No Resistance

Postby Mustang Martigan » Tue Nov 14, 2017 9:56 am

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Re: Knob/Pot Has No Resistance

Postby charmonder » Tue Nov 14, 2017 12:23 pm

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Re: Knob/Pot Has No Resistance

Postby Mustang Martigan » Tue Nov 14, 2017 12:57 pm

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Re: Knob/Pot Has No Resistance

Postby Mustang Martigan » Tue Nov 14, 2017 1:31 pm

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Re: Knob/Pot Has No Resistance

Postby Guga Ramone » Thu Nov 16, 2017 3:13 pm

I had a few pedals where the pots' physical resistance to movement was so low that it could be changed just by pushing the pedal. What I do in these situations is to take a small piece of foam and put under the knob, so the foam touches both the pedal and the knob, making some physical resistance when you need to change the settings.
Last edited by Guga Ramone on Thu Nov 16, 2017 6:11 pm, edited 1 time in total.
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Re: Knob/Pot Has No Resistance

Postby Mustang Martigan » Thu Nov 16, 2017 4:13 pm

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Re: Knob/Pot Has No Resistance

Postby Guga Ramone » Thu Nov 16, 2017 6:10 pm

I just cut a rectangle and stuffed under the knob. Couldn't be any simpler. hehehe Just try it out and figure what works best in your case.

No pots were physically damaged. I guess it happens when the pot gets cleaned multiple times. WD40 and isopropyl alcohol can be used to clean dirty pots, but they remove the electrical grease inside it, used to protect and keep it from moving.
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