Hey --minor amp trouble question.

[TJD]

On my blues jr Tejas Red the volume pot (not the master volume) crackles while playing and loses full sound between 4-8. If I push down on it the problem goes away (while I'm pushing on it).  Is it just  loose or do I need a pot? I never worked on an amp just guitars advice please! I'm missing out on some sweet blues jr overdrive sound!

 

[Superlizard]

Deoxit:

http://store.caig.com/s.nl/sc.2/category.188/.f

If that don't fix it, pot needs replacing.

You wanna spray inside the pot, but be damn careful in the amp due to lethal voltages
stored in the caps.

If you're not comfortable digging in an amp, don't do it.

 

[Cagey]

My guess is the pot's shot. Internally, there's a wiper contact that slides along a circular track of varying electrical resistance. If it crackles while you're turning it, it might just be dirty, but that's the beginning of the end. If it drops out entirely, then the wiper has lost tension and is losing contact with the resistor strip. Either way, it needs replacing. You can spray some contact cleaner on it and see if that buys you some time, but if you're going to go through the trouble to disassemble the amp to do that, you may as well just replace it. If you take it to a repairman, he's not going to screw around. He'll just replace it. Pots are $2. Getting at them is $50. It doesn't make sense to play around with $3 cans of magic cure that only last a few days at best.

 

[-CB-]

Last ditch tip - take the back (body) of the pot and whack it toward the shaft.  If you can distort the body a little, put more spring pressure on the wiper, it may come alive.  Its last ditch... but it works, and what the heck... you're changing it otherwise so whats to lose

 

[mayfly]

Last ditch tip - take the back (body) of the pot and whack it toward the shaft.  If you can distort the body a little, put more spring pressure on the wiper, it may come alive.  Its last ditch... but it works, and what the heck... you're changing it otherwise so whats to lose

That's an interesting idea - never thought of doing that.

But yea, the pot is gone.

 

[TJD]

I'm not afraid of taking the back cover off and replacing a pot---I havent seen the inside yet and my only concern is that the pot pot may be on a curciut board and not hard wired..will any normal guitar volume pot do? If so linear or audio taper?

 

[TJD]

Hey --just ordered the exact fender volume pot for my amp. A place called Darren Riley music.  FYI for you amp repairers--he stocks a ton of Fender amp parts...I called first and he looked up the exact part # for me. I ordered it from his site darrenriley.com.  $6.95 plus shipping ..Why bother fooling around?

 

[Mor Paul]

Hey --just ordered the exact fender volume pot for my amp. A place called Darren Riley music.  FYI for you amp repairers--he stocks a ton of Fender amp parts...I called first and he looked up the exact part # for me. I ordered it from his site darrenriley.com.   $6.95 plus shipping ..Why bother fooling around?

You know... I was just talking to Darren today. He's local, I'm going to use him to setup my guitars.

 

[TJD]

Hey --just ordered the exact fender volume pot for my amp. A place called Darren Riley music.  FYI for you amp repairers--he stocks a ton of Fender amp parts...I called first and he looked up the exact part # for me. I ordered it from his site darrenriley.com.   $6.95 plus shipping ..Why bother fooling around?

You know... I was just talking to Darren today. He's local, I'm going to use him to setup my guitars.

Hey Max...While you're there ask him when he's getting more leather Fender amp handles in..I wanted to upgrade Jr but he was out of stock. :icon_scratch:

 

[Mor Paul]

Hey --just ordered the exact fender volume pot for my amp. A place called Darren Riley music.  FYI for you amp repairers--he stocks a ton of Fender amp parts...I called first and he looked up the exact part # for me. I ordered it from his site darrenriley.com.   $6.95 plus shipping ..Why bother fooling around?

You know... I was just talking to Darren today. He's local, I'm going to use him to setup my guitars.

Hey Max...While you're there ask him when he's getting more leather Fender amp handles in..I wanted to upgrade Jr but he was out of stock. :icon_scratch:

Just sent him an email  :icon_thumright: