There are two leds on the pedal's face. One for bypass and another for gate. So, D5 is the "gate" led and should be connected to go on the enclosure (or not, not really useful).
Haven't studied the schematic but I think the white leds D4 and D6 should probably face the ldr.
Noticed that D4 is apparently the bypass led marked on the schem, so by deduction, only D6 should be paired with the ldr.
Being the prototype, it's a little different to the finished Gjengangar... I would have liked to have tried adding a Tails option but I think the layout is too big already. It's my first attempt at putting a schematic onto vero so I hope things are correct! Be great if someone can give it a once-over.
I am rather interested in this too... Seems like a good chance to learn something about gates and PT2399s. I also made a layout, but I will give yours a look to see if I can spot any glaring errors.
I actually think that the red LED needs to be coupled with the LDR, I think I see two white LEDs on the outside in the photo of the prototype on diysb and the red LED and LDR are both marked GATE on the schematic.
Maybe putting the split n blend circuit in the feedback loop might not be a good way of implementing the mix function. It's already an external loop, so I would think that there is a clean path elsewhere. Mixing clean signal in again through the loop might give some unwanted results. Hope that makes sense, I am also still trying to wrap my head around a lot that going on in this circuit.
Also, there is the tab marked "delay input" coming off of pin 15 of the PT2399. I'm not really sure if that is supposed to go anywhere, it seems like it does...
Thanks for your thoughts, Paul. You're right, it is clearly white LEDs mounted on the front of the prototype. Well spotted. Hmmm, the Delay Input... I think it's already connected to the Return isnt it? I've never done anything with an effects loop before though. Yes, there's a fair amount of new things here for me too, but this looks like a fun way to learn them.
Seeing as the prototype lacks a blend or mix pot, I guess a look at the Deluxe Pitch Pirate again would be an idea. I'll try and get some changes done this week when I get a moment. Cheers.
So the production version of that pedal is different from the schematic. I read that whole thread and he ended up moving to something different which he didn't post. Knut is a really cool dude though and I wonder if he would share it now that he doesn't make this one anymore. I asked him to custom shop me one and he said nah.
I'd like to see if this one works at all, I had saved the schematic years ago too. Looking forward to hearing about it!