what to use in place of a 2K audio pot?

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joel_ostrom
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what to use in place of a 2K audio pot?

Post by joel_ostrom »

i'm replacing the pots in an old Fender amp, the old pot is a 15A 2K pot - but i was wondering how i might go about replacing it with something else if i can't find 2K pots available anywhere. could i possibly compensate for the difference in resistance by adding a resistor to the circuit between the pot terminals and the trace on the PC?

i know they're out there, but i really want to avoid having to order from a special dealer for 1 pot and have to pay the extra shipping when i feel like i could compensate for it in another way.

is it possible to use a 1K instead? or is that too much of a difference?
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Reeltarded
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Re: what to use in place of a 2K audio pot?

Post by Reeltarded »

Have any 5k pots? What is the control function? If it's what I think, better off paying shipping.
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
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M Fowler
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Re: what to use in place of a 2K audio pot?

Post by M Fowler »

2k linear Alpha pots are available at Mouser.
Firestorm
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Re: what to use in place of a 2K audio pot?

Post by Firestorm »

In the mid pot position in that amp you could use 1K, 2K even 5K, linear or audio and not notice a huge difference in any case. But 1K or 5K snap-in pots aren't going to be any easier to find.

It actually looks like Music Parts Guru has all your pot values and the 9-pin jacks, too. Not terribly expensive either.
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Luthierwnc
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Re: what to use in place of a 2K audio pot?

Post by Luthierwnc »

I you have a 5k pot, just put a 4k7 resistor across the 1 and 3 lugs. It will change the taper (how much depends on the existing taper) but it gets you in the ball park when it is wide open. sh
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martin manning
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Re: what to use in place of a 2K audio pot?

Post by martin manning »

Luthierwnc wrote:I you have a 5k pot, just put a 4k7 resistor across the 1 and 3 lugs. It will change the taper (how much depends on the existing taper) but it gets you in the ball park when it is wide open. sh
Luthierwnc, that would be a 3k3 across the element of a 5k to make a 2k, and the taper will not be changed ;^)
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Reeltarded
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Re: what to use in place of a 2K audio pot?

Post by Reeltarded »

I knew someone would come along who could count!
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
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Ballett
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Re: what to use in place of a 2K audio pot?

Post by Ballett »

Hello Man in the mid pot position in that amp you could use 1K or 2K Linear pot. I don't have idea to use the 5k pot.
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Luthierwnc
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Re: what to use in place of a 2K audio pot?

Post by Luthierwnc »

I did say ballpark. sh
joel_ostrom
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Re: what to use in place of a 2K audio pot?

Post by joel_ostrom »

Firestorm wrote:It actually looks like Music Parts Guru has all your pot values and the 9-pin jacks, too. Not terribly expensive either.
I actually checked out Music Parts Guru and ya they do have all the pot values in snap-in pots that i would need, but they're like $9 a piece.

I bought this amp for $100 - I don't think i'm gonna spend $100 to fix this amp up.

I think i'm gonna go with some generic mini (16mm) pots (non-snapin) and just jumper the terminals to the PCB and also jumper the trace points on the PCB where the mount brackets from the snap-in pots would sit.

In theory it seems like it'd work just fine. It might be a lot of tedious tinkering, but i don't mind. I'm in it to save some money and i enjoy tinkering with my toys.

I just needed to know what values i could use in place of ones that were hard to find.

Thanks Everybody!

Joel
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NickC
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Re: what to use in place of a 2K audio pot?

Post by NickC »

Firestorm
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Re: what to use in place of a 2K audio pot?

Post by Firestorm »

joel_ostrom wrote:I actually checked out Music Parts Guru and ya they do have all the pot values in snap-in pots that i would need, but they're like $9 a piece.

Joel
$4, but who's counting... Hey, if you can make higher-quality pots fit, go for it. You need to get the right style shafts so the knobs fit.

It's also possible to disassemble pots and bend the wiper 1mm so it contacts fresh track; almost like new.
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