Damaged tone pot

Ronaldo

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Hey all,
I just finished swapping out some import pots in a project for an extra pair of Gibson pots I had in the parts bin.
The Gibson pots used to work.
After completing, I noticed that the tone pot had no change when spinning the knob, same tone on 0 as it is on 10.
Checked everything at least six times and re-wired twice same result.
Worried that the pot had possibly seen too many heated up solder applications, I decided to remove it and I plan to get another one.
Question, the pot I removed makes a noticeable slight clunk sound almost like a it has a detent in the taper as I spin it and sometimes it clunks and sometimes it doesn't.
I have never heard or felt this in any other pot I've worked with.
Is this a sign of a burnt pot?
I'm just curious and thought I'd ask.
 

Ronaldo

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These pots were wired up a total of three times.
All those times, the heat was not on them long, boom in and out.
This surprised me.
So if the tone pot is burnt, the circuit still plays. The tone it left me
with was not full on high and
not low
Does this sound about right?
Again, just curious
 

jonesy

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Test that pot with a multi-meter and see if the sweep (ohm readings) is within normal specs.

And if you have a meter that tests for capacitance (uf-farads) check the cap and then the tone circuit itself.

Your meter will tell you if it's working or not, better than guessing.
 

cooljuk

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Did you get solder inside the pot? Through the vent hole, perhaps?
 

Ronaldo

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Did you get solder inside the pot? Through the vent hole, perhaps?
Sorry I took so long to answer you.
I think you might be right.
Another pot worked. I think I may have allowed a bit of solder to roll into the slot.
I'm going to perform an autopsy and check inside.
 

SparkyJones

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Yea, you probably cooked it when you soldered the ground to the pot casing. It's a good thing they're cheap. I've cooked more pots while learning how to solder than I am comfortable to admit.
 

Metal Guru

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Buy some copper alligator clips from StewMac or Amazon to use as heat sinks. Clip them to the pot lugs. That will keep you from cooking the pots.
 




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