Beosystem10 said:
That's news to me. I've never been able to find any OEM part such as these for sale from any source, so if you have a bonifide source that you can check and confirm, I'm sure the OP would be very grateful to you if you can provide him with the information he needs to get them from your source. The replacement part from Sharp is RVR-Q0069AFZZ. If you find a generic replacement, keep in mind that the knob shafts will likely be different. It might be longer, shorter, thicker, different taper (physical, not elec curve). Also the mounting legs could be different. On the JVC's, their OEM'd ones have stepped legs to fit the mounting holes. The generic Alps have slightly different leg mount, and would not go in proper. I'm just relaying my experience. The large parts clearinghouses such as partstore, UED and encompass sometimes show them available. They'll take your order, your money, and after 3-6 weeks, cancel and refund your money saying no longer available. A quick google of the part# & I get this:
http://www.encompassparts.com/item/3913162/Sharp/RVR-Q0069AFZZ/Variable_Resistor
Beosystem10 said:
................. have yet to find one with a slider that's failed totally. They've been as over engineered as the rest of these massively thick boxes.............
That is completely 180 degree from my own experience. I've rebuilt so many for myself and other members I've lost count ages ago. The reason I asked whether the slider was an Alps branded one or not is because these Alps sliders are specifically of poor quality. I know this for a fact because I have a bunch of NOS Alps sliders I snapped up specifically to sacrifice the innards to rebuild these sliders. I have seen significant number of these DOA (feelers broken off) right out of the box. If yours were trouble free, then that's great for you. But ask members who own the JVC M70 and RC-838 (both use these dang Alps sliders) and you'll find many with problematic sliders. In fact, just search the Boomboxery archives regarding jvc alps sliders and examples of broken sliders are plenty enough.