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Boss - OD-2 Turbo Overdrive  [schematic]

Posted: 29 Jul 2014, 18:12
by gambitpawn1
i have a boss od-2r and i am concidering moding a blend pot into it verses just buying a boss ls-2. i found this pedals sounds good with my bass but i would like a wet/dry mix.

this is the page that i am using the schematic from for the pedal, i was hoping for a little guidence on where i should try to make my connections/breaks for a blend pot if possible. i have not opened the pedal yet to see if there is any room in it for the pot, but worse case i can put it in a different box and maybe a true bypass... one step at a time though... ... lease.html


Re: boss OD-2r blend pot mod

Posted: 29 Jul 2014, 18:26
by gambitpawn1

Re: boss OD-2r blend pot mod

Posted: 30 Jul 2014, 12:43
by gambitpawn1
Welll.... one the schematics is for a different pedal and after reviewing the correct one I figured out where I would need to, found the two transistors for switching and thats where I would need to get the needed signals. Either way there is not enough room in the box to fit the blend pot. I would need to put it in a different enclosure to make it work....

Re: Boss - OD-2 Turbo Overdrive

Posted: 12 Sep 2019, 07:22
by Gila_Crisis
I got again a Boss OD2r after long, and I really love this overdrive.
I did few mods, however, just to get more low-end out of it. I used the attached schematic, the component are marked as they are in the pedal.
Also the Wampler book was a good starting point.

C1, C12, C18: 100n
C6, C8, C13: 47nF
C17: 330n
C4, C9: 680n
C16: 6n8 (gives more presence and open sound the turbo off channel)
C14: 1uF

I did try higher values in the Turbo section, but then the sound was over way to muddy.