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Variable / switchable slope resistor?

Discussion in 'Amp Central Station' started by zizyphus, Nov 2, 2020.

  1. zizyphus

    zizyphus TDPRI Member

    Aug 5, 2020
    Hey all!

    I have a heavily hotrodded Blues Junior, and one of my mods was to swap the 100k slope resistor for 50k to fatten up the midrange. I love what it did to the tone, but I'm thinking of either making the slope resistors variable, or installing a switch to allow me to flip between different resistor values. Do any of you know where I could get a part that would allow me to do so?

    The reason I ask is that the switch / pot would see a lot of DC voltage, and I don't think a standard pot would be able to handle it. Also, I've seen plenty of DPDT switches that are rated for, say, 10a / 125v, but the plate voltage is well above that, so I don't know how reliable those switches would be. Am I completely wrong about this?

    thanks in advance!
  2. J-Flanders

    J-Flanders Tele-Meister

    Aug 4, 2016
    How about circumventing the problem by putting an extra coupling/DC blocking cap before the tone stack?
    Paul G. and Lowerleftcoast like this.
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