Precision Volume & Tone Pots

[petetexas]

Hi ,
Has anyone tried changing the 250K Vol and Tone pots in a Precision Bass to 500K and increasing the cap to 0.1mf ?
I saw this somewhere , it said that it increased the treble , hence the larger cap .
Pete

[ikay]

[url="http://www.bassplayer.com/gear/1164/tech-bench---mod-squad-potent-pot-mod/27204"]http://www.bassplaye...t-pot-mod/27204[/url]
See fourth para 'cooking with pots' (not tried it myself)

Edited October 8, 2015 by ikay

[petetexas]

Thanks ikay,
Very interesting.....................
Just upgrading to CTS and Sprag at moment , but will try sometime .
Pete

[iiipopes]

The larger value potentiometer on the volume control will provide less loading to the circuit, which results in a marginally raised resonant peak, which we perceive as "brighter." And it does function the same to a lesser degree on the tone control.

BUT...increasing the tone capacitor value only lowers the cutoff frequency. It does not "compensate" for anything. All it does is make more mud. In a typical passive tone circuit, using a 250kohm pot with a standard tone cap will be the same as using a 500 kohm audio taper pot with the control turned down to the same resistance, which is about "8" on the knob.

[petetexas]

Thanks guys .

Quite happy with 250K and .047 for now ( have put a Dimarzio in her ) , when I roll the volume slightly back , it thins the sound out a little ....perfect !

Pete