Need help identifying a potentiometer

OK I see that these are dual-gang pots. I found that out.

But there are two linked together? Where can I find those?

Also, why does on pot (the forwardmost one) have only one set of three pegs?

And I haven't found four-pegged pots, like the one in the rear. Why does it have four?

Again, any help is welcome.

It's probably custom-fabricated for this particular product. The individual subsections are probably not all that unusual, but the combination is likely unique to this one product line.

The two four-contact sections are probably a pair of linear-taper potentiometers with a fixed tap (the tap being used for the "loudness" circuit). The three-pegger in the front might be a switch, or might be a linear-taper pot which is used to read out the control's rotational position so that the remote control management circuitry can "servo" the pot to the desired location.

You might want to try giving each of the potentiometer sections a good cleaning, using a low- or no-residue contact/control cleaning spray, or perhaps one which is designed to clean the contacts and then leave a very small amount of lubricant on the potentiometer surface. This

If that doesn't work, and if you decide that you do need to replace the control, I think you're probably going to have to just buy the whole replacement module from JVC for their asking price. Although it might be possible to cobble together a custom replacement from off-the-shelf parts, I think that you'd probably have a very frustrating time indeed trying to put together the necessary set of components, and would likely have to do enough adaptation and refitting that you'd end up with a basket of snakes.

"bryanska" wrote in news: snipped-for-privacy@i12g2000cwa.googlegroups.com:

How hard did you pull it, exactly? That bent and broken metal looks like a lost cause to me. Cleaning the pots with a small flush of isopropyl alcohol might have been all that was needed, but now you'll need the original assembly complete with the mounting bracket to get things right. You might find a pair of dual-ganged pots on one shaft, and use half of one of them, but you'd have to get a A law (log) pot for audio, and if you wanted the remote volume control to work, you'll have to figure out a way to get the gear attached and connected to the motor drive, and a flat on the spindle appropriate to the original knob.

Beleive me, pay what JVC want. It's far easier to raise that money than to make this work any other way. Pay it and don't look back.

Looks to me as if it is a custom assembly. There may be four resistance elements (the brown wafers), interconnected in some special way.

I expect that the only source for a direct replacement would be JVC. If you had a wiring diagram for the stereo, and sufficient knowledge, you may be able to find a usable substitute, but it likely wouldn't work quite the same, and probably couldn't be motor-driven.

Thanks for the advice all.

I searched ALL over the Net and couldn't find any generic part close to this.

I wasn't concerned about the bent metal. That was an easy "loss" which allowed me to gently pull the delicate pieces apart.

So I dissected it, having given up on finding a cheap replacement. It was indeed very custom, as the shaft proceeded through the first pot, and through the second, to terminate in the gear assembly.

I am going to try to contact a representative at the JVC parts house and fanagle a lowball offer on the assembly. The stereo itself is an older model built in 1991. My father paid an exorbitant sum and kept the unit in flawless shape. It's a shame that some tiny, otherwise cheap copper contacts will bring down what's really a glorious system. It was one of the first "shelf" size systems.

Thank you everyone for your advice! What a helpful group.