tone knob :(

Discussion in 'Tele-Technical' started by dougstrum, May 2, 2017.

  1. dougstrum

    dougstrum Tele-Holic

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    How can I get more sweep from my tone knob? Currently it's like having
    an on/off switch, after 1/4 turn treble seems full on...I've got 250k
    linear tone pot with .02 cap from middle lug over to input lug on vol pot.
     
    Dismalhead likes this.
  2. Vizcaster

    Vizcaster Poster Extraordinaire

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    Linear should get you a more gradual sweep as you back off, because the usual audio taper would rather abruptly drop off from 10 to 8. I suppose a higher value pot of 500k would work more gradually?
     
  3. KokoTele

    KokoTele Doctor of Teleocity Vendor Member

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    My experience with linear tone pots is that they function exactly like doug's describing. I'd swap in a 250k audio pot and try that. Mojotone sells a branded CTS pot with a more gradual sweep than the standard CTS pots, and I think the ones that StewMac sells as the Emerson Pro CTS pots are similar.

    You might also try a .047uf cap, or just clipping another .022uf one in parallel to try. That will move the frequency cut-off point more towards the wide-open end of the pot rotation.
     
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  4. dougstrum

    dougstrum Tele-Holic

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    Thanks~ I'll have to try an audio pot. .047 cap moving cut
    off toward wide open end of rotation would be better. Bet
    .047 cap would merely give deeper cut when tone is further
    rolled down.
     
  5. Vizcaster

    Vizcaster Poster Extraordinaire

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    D-oh - I was thinking how a volume pot behaves, but with a tone pot you're starting with the full value of the pot at 10 and then turning down the resistance to bleed off more trebles through the cap (as opposed to a volume pot where you start at zero and start adding a load on the circuit). So audio taper pots are generally used for tone controls.
     
  6. JD0x0

    JD0x0 Poster Extraordinaire

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    I find smaller value caps have a more gradual sweep as well. Dont muddy up as quickly. 22nF is a good bit lower than 47nF, but I often use values below 10nF for my tone controls. Personally, I dont use those values for the 'sweep' I just find the high end roll off to be more usable, to my ear.
     
  7. dougstrum

    dougstrum Tele-Holic

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    Perhaps I should try audio taper, probably have one in parts drawer:)
    Just wish this guitar had less abrupt tone control! Treble seems
    like it's full on till the pot is almost off.
     
  8. Sjnoring

    Sjnoring Tele-Afflicted

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    I had the same problem with the stock pots on my Am St Tele. They were like toggle switches. I replaced them with DiMarzio 250k which was much better. But I don't know if they're linear.
     
  9. dougstrum

    dougstrum Tele-Holic

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    Oh my, played a cold rainy festival today:( Used the guitar
    that started my tone knob question. I had only played it
    at home~low volume keep everyone happy. When I had it
    cranked outdoors today, I had tone the knob abt 3/4 open
    more or less depending on pickup selector.

    Lesson learned~don't rush to judgement on equipment changes
    till you've gigged them!
     
  10. KokoTele

    KokoTele Doctor of Teleocity Vendor Member

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    Trudat. Things sound and behave much differently at stage volume than they do at livingroom volume.
     
  11. FattoneTele

    FattoneTele Tele-Meister

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    Maybe you should try a Fender TBX. They seem like they'd be more sensitive since that can also cut bass frequencies to get a brighter tone.
     
  12. The Ballzz

    The Ballzz Tele-Afflicted

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    Be careful of the MojoTone Vintage Taper pots, as some of them have an extra C-clip on the shaft that keeps the knob from going down all the way to the body or plate!
    Just My Experience,
    Gene
     
  13. Lef T

    Lef T Tele-Holic

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    By your avatar it looks like you're a lefty.
    Me too.
    I put left handed CTS 250 pots in my Tele.
    They work perfectly,as a volume and tone pot should.
     
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