Potentiometer suppliers

Duncan Wood · Post by **Duncan Wood** » 28 Apr 2023 2:39 pm

Hi all - I've been searching electronics suppliers like Mouser and Digi-key, and just can't find a suitable replacement for my Goodrich H10k volume pedal. I want to use a 10k pot instead of the 470k that was in it (desperately needs replacement anyway). But after searching for hours, I can't find anyone stocking audio-scaled pots with long life (~1 mil cycles) in the correct dimensions. I can find part numbers in spec sheets from manufacturers like Vishay, Bournes, TT Electronics, but it seems like no one is carrying the designs I need.

Where do y'all look for parts like this?

Jerry Erickson · Post by **Jerry Erickson** » 28 Apr 2023 8:45 pm

There's one here, the TOCOS brand.

https://www.tubesandmore.com/products/p ... 7c147a1052

Dave Grafe · Post by **Dave Grafe** » 29 Apr 2023 5:57 am

Check with Tom Bradshaw
https://songwriter.com/bradshaw/products.php

Bill Ferguson · Post by **Bill Ferguson** » 29 Apr 2023 6:09 am

Tom (and I) carry the 470k Dunlop pot that is now being used in standard Goodrich pedals.

I would call Goodrich and ask Kevin what you should do. He might not have them, but I would bet he would know where to buy them.

Jim Palenscar · Post by **Jim Palenscar** » 29 Apr 2023 8:40 am

There is absolutely no problem in using a 470k pot in the 10k pedals.

Duncan Wood · Post by **Duncan Wood** » 29 Apr 2023 12:51 pm

Jerry Erickson wrote:There's one here, the TOCOS brand.

https://www.tubesandmore.com/products/p ... 7c147a1052

Thanks Jerry, this looks promising!

Jim Palenscar wrote:There is absolutely no problem in using a 470k pot in the 10k pedals.

In a pinch I agree, but a 470k pot introduces >30dB more Johnson noise than a 10k and in a recording setting I'd like to preserve all the dynamic range I can before I squash it with compression and saturation.

Jim Palenscar · Post by **Jim Palenscar** » 29 Apr 2023 1:06 pm

"Johnson noise"

Donny Hinson · Post by **Donny Hinson** » 29 Apr 2023 3:08 pm

This may fit the bill:
https://www.galco.com/501-0021-nte-electronics.html

Or this one:
https://us.amazon.com/Clarostat-Honey-R ... B01KHWGLK8

This'll work too, but you may have to cut the shaft:
https://www.studioelectronics.biz/sunsh ... ail&p=6972

That oughta be enough to get you started.

And by the way, I recommend removing the back cover and lubing the pot with a proper lubricant before you install it.