SA-8500 Volume / Balance pot replacement

[zaibatsu]

Anyone know where I could find one of these?

Concentric volume/balance with loudness tap. Pot is physically broken (cracked through through all boards) so there's no saving it.

I'm guessing it's pretty unobtainium but worth asking just in case. I know it could be replaced with just a volume pot to keep the amp going but it'd be cool to get it back to factory spec if possible.

 

[amr2]

Hello. Have you found any solution? I have the same problem...

 

[markthefixer]

acv-407 from the picture
four section pot - THAT'S very unusual 2 x 250k HB (balance) taper, 2 x 100k B (volume) taper volume and balance.
Pioneer parts database no longer recognizes part number acv-407 so we no longer have easy access to the other models it is used in.

The only sources are now just donor units - SA-8500 and SA-7500(verified)

 

[Watthour]

Short of harvesting boards from other single- or dual-gang pots and retaining the original hardware, a take-out from a donor unit may be the only alternative.

 

[amr2]

Short of harvesting boards from other single- or dual-gang pots and retaining the original hardware

This could be an option

2 x 100k B (volume) -> Linear taper for volume?

 

[slayer44]

I have one...PM me if interested.

 

[amr2]

thanks to @slayer44 I have a replacement pot.

 

[lucky65]

Hi all,
I am repairing an old SA-8500 MK1 and the volume / balance pot has a broken loudness terminal, so I am resuming this old thread.
Any hints on where to find a replacement ?

Thanks a lot,
best regards