Re: How to lower a 5k rev pot to 1k pot | Fulltone 70

Posted by induction on Dec 28, 2013; 5:08pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/How-to-lower-a-5k-rev-pot-to-1k-pot-Fulltone-70-tp7490p7491.html

You can attach a 1.2K resistor from lug 1 to lug 3. That will get you pretty close without changing the taper.

Resistors in parallel: R = R1*R2/(R1+R2),
so R1 = R*R2/(R2-R) = 1k*5k/(5k-1k) = 1.25k

A 1.2k resistor will give you 968R total.

A 1.5k resistor will give 1.15k total.

Either will be fine. The only difference will be the amount of fuzz at minimum setting, which probably won't be noticeable anyway.

Alternatively, you can just use a 1k linear pot. The gain variation will be more bunched up at the high end of the pot, but lots of people leave that pot permanently at max and use their guitar volume knob to control the amount of fuzz, so the taper doesn't matter much.