Promethium distortion cap swap

[GORP]

Wondering if I could swap the 1.5uf cap at c16 for a 1uf? Taking a look at the schematic I’m not sure what kind or how much of an effect it would have coming out of that ic and into the bass control. Any guidance is appreciated

 

[benny_profane]

You could, but you’d change the behavior of the LOW control.

The stock setting is a band pass filter with a center frequency of 86.8Hz. With a 1uF cap, you’d change it to 106.3Hz.

Guitar Pedals: Gyrator Filter Calculator

Calculate freuqency cutoff for guitar effects pedals with vacuum tubes and solid state electronics. FREE calculator.

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[GORP]

Gotcha, assumed that was the case. Thanks for the info

 

[BuddytheReow]

If you want some Swedish chainsaw, keep the 1.5u cap.

 

[benny_profane]

If you make changes to other components to hit the same frequency target, you’ll alter the Q of the filter. Try a 1uF and 470nF cap in parallel to get you there if you don’t have a 1u5 cap.