Transistor voltages for boss tone

Started by joergr, June 29, 2007, 07:01:45 PM

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joergr

When building a Boss Tone using Aron's schematics

http://www.diystompboxes.com/pedals/bosstone.gif

it first did not work because I had forgotten to cut one track on my veroboard. While searching for the error I googled a lot but could not find the values of the transistor voltages. (I found a lot of voltages of nonworking boss tones instead :icon_lol:)

As I finally found the error I thought I post here the voltages in case someone else may run into the same problems.

Q1: E = 0 V / B = 0.1 V / C = 0.9 V
Q2: E = 0 V / B = 0.9 V / C = 4.5 V

I made all modifications to the scheme that Aron suggested and took simple ceramic capacitors and linear pots. I really like the sound.

Only small problem is that I get a motorboat sound when the attack pot comes too close to the left end. But I can live with that. It's kind of an effect as well.  ::)