I've searched long and hard for this seemingly simple bit of info to no avail. I am trying to build a BMP with a tone bypass switch. All I can seem to find is information verifying that such a mod exists and that it removes a resistor and a cap. What I cannot find is a diagram illustrating how to wire this to a switch. I currently have an Aion Electronics Halo board and a Rullywow King Tut to work with. Why I'm asking for would make that irrelevant though as it should work for any BMP clone. Where to I hook the wires up to???
On a related note, I have a couple THCustoms 5 band EQ boards. What do I need to look at if I want to "inject" this board into the tone section of a BMP or Rat? Is it better to just run the EQ in series with the dirt board before/after?
I had a similar struggle in learning how to wire an offboard diode selection switch but have recently learned that you simply run the middle lugs of a dpdt to the two positive pads of the diode group.
Help a dude out.
Take a look at the IC Big Muff, that should show you how to do it in principal.
Edit: there is a schematic on here: http://pedalparts.co.uk/docs/IC78-V2.pdf
With the Mudbunny schematic, I suspect you'd bypass the tonestack by tying Q3's collector to C12. This will probably make the circuit louder, given the lossy tonestack.
Quote from: alanp on May 26, 2016, 06:03:07 PM
With the Mudbunny schematic, I suspect you'd bypass the tonestack by tying Q3's collector to C12. This will probably make the circuit louder, given the lossy tonestack.
So would I simply run a wire from the Q3 pad and one of the pads of C12 to the first and second lug of a on off SPDT? I'm trying to figure out how to do this mod on any muff based pcb. C 12 may be C13 or 14 depending on the particular layout and I know I'll need to refer to the schematic, but the application should be the same. I know it will be louder, that's partly the goal.
Give it a go and report back :)