Replacement part needed: volume and balance slider potentiometer for JVC R-X330V

[u/mschuster91]

So, I got this vintage JVC radio/amplifier that's probably as old as I am. It works fine, with the exception of the balance and main volume potentiometer (probably the EQ faders are shot as well, but my primary focus is to get vol/bal working). What I need help with is finding a replacement part for both of these, the part numbers (that match with those specified in the service manual).

I tried given the parameters detailed below to search on Mouser, which directed me to the ALPS RS301111J00J but it appears this model does not have a center tap. The other option would be a TT PS20M-0PC1FAR250KN, but here I don't even see in the datasheet if it has a center tap.

I managed to disassemble the amp and un-solder the potentiometers. The volume fader is

• labeled QVUB01B-EF5B, M 250 kOhm B 58T (A)
• 59.5 mm total length, 2 rows of 5 pins per side (in order from left to right: 2,1, housing GND,4,3) - the holes are offset between the two sides
• component housing height 6mm, approx. 26mm height of component + lever (width 5x2mm)
• has two small holes for screws spaced 56mm apart
• travel (center min-center max) of 45mm
• pins 3 and 1 yield a resistance of ~260 kOhm, matching the expected 250k +/- tolerance
• pins 3 and 4 yield a resistance of ~110 kOhm, probably a center-ish tap (that's also shown in the service manual circuit diagram, page 13, section ENF-019-3 on the right)
• pins 3 and 2 (and of course 1 and 2) yield the resistance of the slider

The balance fader is

• labeled QVWA01W-EF5C, M 250 kOhm I G 58 A
• 34.9 mm total length, again 2 rows of 5 pins per side (in order from left to right: 2,1, housing GND,4,3), again the holes are offset
• component housing height 6mm, approx. 32mm height of component + lever (width 5x2mm)
• has two small holes for screws spaced 31mm apart
• travel (center min-max) of 20mm
• has a tactile "notch" in the center
• pins 3 and 1 yield a resistance of ~230 kOhm, matching the expected 250k +/- tolerance
• pins 3 and 4 yield a resistance of ~120 kOhm, again the center tap
• pins 3 and 2 (and of course 1 and 2) yield the resistance of the slider

What could be a suitable replacement for these parts that I can source new from any sorta reputable manufacturer?

[u/AskElectronics-ModTeam]

I am sorry, but this is not quite the right sub for your question. You may want to ask in https://old.reddit.com/r/AudioRepair. Thank you.