DOD FX5X Supra

[Pedal_man86]

Build this dod fx5 a while back, think I built it to the supra specs but I used TL072s instead of the chips listed due to them being difficult to find. It works okay but I have to turn the gain knob quite a bit to get distortion. I'm guess maybe there's a resistor or cap I could change to change that?

 

[andrewsrea]

Ensure your clipping diodes are oriented correctly. It is hard to tell from the pictures. Ensure C3 is no more than 220pF. From the picture, it looks like one of those mini 1Uf poly types.
If all else is the proper component, an A1M potentiometer will pinch out a bit more gain to drive the clipping diodes.

 

[DGWVI]

It works okay but I have to turn the gain knob quite a bit to get distortion. I'm guess maybe there's a resistor or cap I could change to change that?

That's normal behavior for this family of circuits. The easiest mod would be to add a smallish value resistor to lugs 2/3 of the Gain pot. Start with 10k and adjust up or down to taste