I have 5 of the same 500k log push pull pots to use for 3 volumes and 2 tones. I'll use a 150k resistor & 1nF cap as a treble bleed on the volumes across pins 1 input & 2 wiper. The tone pots have the capacitor wired from the volume pot pin 1 to the tone pot pin 2 wiper, and ground on pin 3.
Can I change the tone pot slope like how the treble bleed effects the volume pot (changes it from log to more of a linear slope) by using a 150k resistor across some pins on the tone pot? If so, which pins, 2 & 3?
I would have preferred to have linear pots for the tones, but Dimarzio (actually CTS as a subcontractor) doesn't make them in 500k p/p, and having all the same quality pot for consistency in turning action is preferable to me than mixing manufacturers.
Last Edit: Nov 23, 2013 20:01:44 GMT -5 by bdawson7
It doesn't specifically address trying to get a log pot to go linear, but it does talk about turning a linear into a reverse log. Theoretically, doing that to a log pot would make it look more linear, right? Of course, that will also reduce the effective maximum value of the pot...
Post by 0wnyourtone on Nov 26, 2013 22:48:52 GMT -5
I've messed with that a bit - it does reduce the maximum resistance against ground, which can dull the treble too much if you have a traditional value pot for guitar, like 250/500k. I've found I prefer just trying a few pots with different resistances and tapers. Quite the opposite for volumes - I almost always use a taper resistor on an audio pot, rather than a straight linear or audio taper. I like an "S" to the curve, rather than a dip, hump, or straight line.