Quote Originally Posted by Andy40 View Post
Interesting notes jug. What was your preference?
At the drive levels I normally use, none of the LEDs clip much in this pedal, leading to that switch position sounding the same as the diode lift position (a common observation I have seen of this circuit). I had to push really hard to get colours other than red to clip noticeably at all (drive knob maxed, guitar vol maxed, bridge PU, hard attack on power chords). So in this circuit, red LEDs are the only useful option to me.

I really liked the sound of the 1N4001s, and my favourite was asymmetrical with 1 red LED and 1 1N4001. That's what I left in for now.

Note the pedal has a 3 way switch that selects between 1N4148 clipping, no clipping (diode lift) and the LED sockets.

I also have more experiments to do, since the pedal has a trimpot to dial in the max gain setting of the circuit. I have a lot of upward adjustment on this that I could try to drive the clipping diodes harder. I don't want to lose the sweet low-gain sound though.