Guitar amp I want to fix my Peavey guitar amp. I need a new volume pot. 71190510 88 36 10KLTN are the numbers written on it. I guess its a 10K ohm potentiometer. Do you have this? It's a funny shape.

need a new pot..

If you have one of the older original pignose 7-100 amps the volume pot will be a 10k audio pot. If it's a later model it will be a 50k audio pot and your local Radio Shack should have one and if not they can get one. Or go online to Mouser Electronics, All Electronics or any one you prefer and order it online and it will show up right in your mailbox. Let me know if your pignose is an older original model. If so then you may be able to do me a favor regarding the same model, thanks, Bob [email protected]

I recommend checking music stores in your area for that, it doesn't have to be any specific rating of impedence. Depending on brand, I see guitars with anything from 50 ohms to 250 ohms. This only allows a faster cutoff on volume than others. The most critical action is to have a smooth taper, meaning a straight volume rise or decline versus one that goes down slowly or quickly and suddenly cuts off. Most any guitar volume control from a music store will work just fine. In case I confused you, ohms is the rating of the control, the taper or smoothness is classed as A, B, or C. A is normally for volume controls and B is used mostly for tone controls. Knowing that should give you insight insight to the difference of the controls.

If you hear any difference in the sound while moving the pot and not scratching sounds while moving it then its not the pot...
If i understood the problem right, i have seen it in 2 ELKA guitar amps.
In their case it was the TL072 opamps in the preamp section the problem and i tracked it and it must occured due to no earth connection in the wall socket and as a result to the amp...

The problem is LIKELY a broken solder joint right at where the leads of the volume pot come through the circuit board. The broken joint will ozidize overnight and then when vibration rattles it it will punch through the oxide. INSPECT all solder for the pot leads. Lood for a TINY grey line in the menicus of the solder where the lead comes through the board.

Given your description of intermittent problems, I would venture an educated guess that the problem was NOT the pots to start with. Usually pots will have a part number and you may find an "A" or a "B" indicating the taper.

Look for a circuit board crack in the vicinity of the guitar input section, especially near the pots. Use a BRIGHT led flashlight from opposite side of the board and inspect all solder joints around the input section.

Line 6 seems to play games with a "guitar sense" line that goes to the DSP so problems with that or a break in the circuit trace could cause the symptom.

usually combo amps are 8 ohm for guitar. a 16 ohm speaker load comes into play usually on half stack set ups. danville tec 10d, i would guess a ten inch speaker, which is also very common for guitar amps.

NEVER use switch cleaner such as DeOxit on pots !!!!!

I have used CRC226 available at Home Depot electrical dept.

I SUSPECT that the resistance element in that pot is cracked. This is common if the knob sustained a hit. Replacing the pot is the only cure if the element is cracked.

Reviewing the schematic, ALL audio passes through the wiper on the HIGH tone pots. If the wiper is intermittent, so will be the sound.

If your unit is solid state amp, the pot looks like a 10K ohm LINEAR taper.
If you have a tube type, then the pot is a 250K ohm LINEAR.

Note that the other tone pots in the units are AUDIO tapers, but the high is a linear taper.

Get repair parts from either DigiKey.com or Mouser.com

if the signature ex has any special plugs then the actuall diagram for that guitar is needed. but if it uses the standard two or three potential meter ( volume knobs and tone knobs or (pots) ) with a pick up selector and an input. then you can use any guitar wiring diagram and i think you can find that on web. wiring the pick up should be shown in the diagram with the pick up selector.

Hi I have written two troubleshooting guides on the issues you have try them at http://www.howtodothings.com/electronics/how-to-fix-the-fuse-on-your-guitar-amplifier

Let me know if you still face a problem