Sunday 16 June 2019

Boss DS-1 Distortion Pre 1994

Pre 1994 spec using a DIP 8 single op amp and input and output buffers.




7 comments:

  1. Is there a bigger sized image available?

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  2. Hey Anders - Gonna try and incorporate this into a build for a friend. Per the other layouts of this circuit that are floating around, lug two of the tone knob goes to lug three of the level, right?

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  3. Okay - for what it is worth, you can call this verified. I built it up with a 741, a W20k pot for the tone and a clip selector to go between 4148s and red LEDs... but all that stuff aside, it does sound better to me than a lot of the DS-1 pedals I've heard!

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  4. This is a DS-1 I could build.

    I found a small mistake, looking the schematic I have:
    the input cap, after the 1k, is 47nF, and the cap going out the emitter of Q1 is 470nF. Those are simply swapped. I didn't check the whole layout, but if it sounds fine I guess it's pretty ok.

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