Home Forums Vintage EHX D-Shaft Pots for Big Muff

Viewing 14 posts - 1 through 14 (of 14 total)
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  • #78015
    lordviper63
    Member

    Hi everyone. Does anyone know where I can get raplacement pots for an older Big Muff? I need either D-shaft or solid-shaft, but I can’t find anything with the long lugs on them. Also, I’m not sure what values I need, liner/audio taper, etc. Any help is appreciated. Thanks.

    #95296
    The EH Man
    Moderator

    If it’s just the shaft that’s broken you can easily disassemble the pot and replace the shaft. Drop me a PM and I’ll get one to you.

    #95300
    Howard Davis
    Member

    I’ve found Small Bear Electronics a good source for parts for old EH pedals.

    Guitar pedal design engineering, repairs, and custom mods:
    http://howard.davis2.home.att.net/

    #95301
    The EH Man
    Moderator
    Quote:
    I’ve found Small Bear Electronics a good source for parts for old EH pedals.

    Guitar pedal design engineering, repairs, and custom mods:
    http://howard.davis2.home.att.net/

    Not for vintage D-shaft pots.

    #95311
    devnulljp
    Participant
    Quote:
    Quote:
    I’ve found Small Bear Electronics a good source for parts for old EH pedals.
    Guitar pedal design engineering, repairs, and custom mods:
    http://howard.davis2.home.att.net/

    Not for vintage D-shaft pots.

    Ron, do you have a source for those? I’ve been looking for some replacement knobs for my old Big Muff and have run into a brick wall as far as those for D-shaft pots.

    #95312
    The EH Man
    Moderator

    No, I don’t really have a source. I just watch around for old CTS pots that have the same shaft and the same open back design, buy them, and remove the shaft assemblies for replacing in vintage EH pedals. I should just contact CTS about buying a quantity of shafts.

    #95314
    lordviper63
    Member

    Thanks for the replies. I should make it more clear that when I say “older”, I mean an older reissue. I think I got mine around 2000 and it had D-shaft pots and pointer knobs. One of the lugs on the volume pot broke, so I need to replace the whole thing. Would these work?

    http://www.smallbearelec.com/Detail.bok?no=710&sfs=14a7e77a

    I have set-screw pointer knobs already, so I figured I could just change the whole set. I don’t need vintage pots or anything like that; I just want something equal in quality to whatever is in there already. Thanks guys.

    #95315
    The EH Man
    Moderator
    Quote:
    Thanks for the replies. I should make it more clear that when I say “older”, I mean an older reissue. I think I got mine around 2000 and it had D-shaft pots and pointer knobs. One of the lugs on the volume pot broke, so I need to replace the whole thing. Would these work?

    http://www.smallbearelec.com/Detail.bok?no=710&sfs=14a7e77a

    I have set-screw pointer knobs already, so I figured I could just change the whole set. I don’t need vintage pots or anything like that; I just want something equal in quality to whatever is in there already. Thanks guys.

    What pedal is it?

    #95328
    lordviper63
    Member
    Quote:
    Quote:
    Thanks for the replies. I should make it more clear that when I say “older”, I mean an older reissue. I think I got mine around 2000 and it had D-shaft pots and pointer knobs. One of the lugs on the volume pot broke, so I need to replace the whole thing. Would these work?

    http://www.smallbearelec.com/Detail.bok?no=710&sfs=14a7e77a

    I have set-screw pointer knobs already, so I figured I could just change the whole set. I don’t need vintage pots or anything like that; I just want something equal in quality to whatever is in there already. Thanks guys.

    What pedal is it?

    Its just a regular Big Muff Pi. My multimeter is telling me I have 100k pots, and I’m just guessing they’re linear taper.

    #95590
    lordviper63
    Member

    Lemme ask this instead…does anyone know where I can find the regular split-shaft, 100K pots electro-harmonix uses in NYC Big Muffs? The ones they use now are fine, cause my set-screw knobs will work with splined shafts anyways. Thanks.

    #103851
    devnulljp
    Participant

    hey, I need some pots for my ram’s heads — I have one with three XM2184 / 100k linear pots that look original.
    Another with alpha replacements that are toast — different values — some 10 k others 100k.
    They should all be 100k linear right?
    Got a good source?

    #113132
    djmhiratzka
    Member

    I have a relatively new black Russian BMP (2006), and the pots are shot, they were super scratchy and when I tried to clean them the posts pulled completely out of the pot and I can’t get them back in. I would like to replace all 3 with something high quality (like my Fulltone ’69 fuzz, great build quality!), I don’t care if it means I need to get new knobs for it. I’m going for tone, not looks… Any ideas where to source really high quality pots that will fit into this model? Any help would be greatly appreciated!!!

    #113140
    Scruffie
    Member
    Quote:
    I have a relatively new black Russian BMP (2006), and the pots are shot, they were super scratchy and when I tried to clean them the posts pulled completely out of the pot and I can’t get them back in. I would like to replace all 3 with something high quality (like my Fulltone ’69 fuzz, great build quality!), I don’t care if it means I need to get new knobs for it. I’m going for tone, not looks… Any ideas where to source really high quality pots that will fit into this model? Any help would be greatly appreciated!!!

    Pots is pots, there’s no such thing as pots with good tone, they serve a purpose, tighter tollerances would be what you are after, but even that is finite.

    Just get the pots with the right tapers and values from anywhere, most places will stock the same ‘Alpha’ Brand pots, they’re used in basically every pedal, from cheap to boutique, even Fulltone.

    They’re mechanical, much like the foot switches and as such, tend to go bad as they are worked, however something can be said for not having them board mounted, but nothing related to the issue you discovered, it was just poor luck :)

    Fulltone would use these – http://www.smallbearelec.com/Detail.bok?no=555
    Smallbear also stock new knobs (I’m assuming you’re located in the U.S)

    Hope that helps.

    #186784
    vintageman
    Participant

    “The EH Man
    Moderator
    If it’s just the shaft that’s broken you can easily disassemble the pot and replace the shaft. Drop me a PM and I’ll get one to you.”

    Hi Eh Man. I realize this is an old post but I do have a broken shaft on a vintage rams head big muff from the mid 70’s. I don’t see an option on how to send you a PM but wonder if these shafts are still available. Thanks!

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