Heathkit AR-1500 volume pot. Compatibility with other Heathkit units?

[akmfg]

Hi, all.

I've got a Heathkit AR-1500 with a bad volume pot. It is a dual 25k ohm with center tap, Heathkit part number 12-112.

I've been unable to source a replacement.

There seem to be some dual volume pots available from some old AA-22 units, and perhaps some other Heathkit units as well, but I'm not sure which of the old Heathkits used pots that would be compatible (electrically and dimensionally) with my AR-1500.

I'd be grateful for any ideas you can offer.

Thanks!

-Matt

 

[fred soop]

Total resistance of a volume pot is not critical. The tap is for the loudness circuit. The AR-15 also uses a 25K pot but mechanical design might be the biggest issue.

 

[Doug G.]

I have the same issue with one of my AA-2010 quad amplifiers and I am in the process of attempting a repair of the broken right channel resistance element but I also bought one of these as it appears the elements are physically the same as the ones in my volume control although I haven't removed one yet to verify.

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Doug

 

[hspivak]

Sometimes control boards are found on ebay, these contain the four main pots used by both the AR-1500, as well as the AR-1500A.