my first overdrive

[pinkjimiphoton]

hi, found this on the web, thought since i had all the parts kicking around, i'd try it out...

http://www.instructables.com/id/Make-an-easy-guitar-distortion-pedal-STEP-BY-STEP/step20/Adding-a-bypass-switch/

modded it a little bit for a gain/bias control, and added a switch so i could use either led's or silicone diodes for the clipper.
really nice warm brown overdrive sound, may be a worthy project for lummoxes like me that are just starting out to try...

i built the circuit board on a piece of cardboard, of all things..lol.

so anyways, here's my really poor quality schematic i tried to draw...there may be mistakes, i am really new at this stuff, here it is, the burnt-toastie overdrive:



i hope someone finds it useful....

question...can i just tap off the power supply to add another transistor to this, so maybe i can add a simple tone circuit?

thanks...
peace
jimi

[petemoore]

  It looks like NPN neg Gnd.
  Any NPN Neg Gnd. active stage can share the power supply, another transistor is N/P as far as current draw.
  See some distortion or amp simulator schematics for examples. 

[pinkjimiphoton]

cool, thanks so much! lookin' forward to tinkering some...i'm assuming from the schems i've been looking at, you just need to add another stage to the power supply with
a cap and a resistor?

this is way more like tube amps than i thought it was.

thanks for the advice and guidance!
blessings
jimi