Boss SD-1

This is a lot like a tube screamer. The mid bump is a little higher up and it uses asymetric clipping.

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Interior Photo
Exterior Photo

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9 Responses to “Boss SD-1”

  1. Peter Says:

    Nice Scheme, very usefull big THANKS!

  2. tahir Says:

    hi, thanks but what about transistors ? which transistors did you used and in original sch. there’s 3 transistors what about them ? ( except bypass fets )

  3. Austin Dwi Says:

    hi, thanks but what about transistors ? which transistors did you used and in original sch. there’s 3 transistors what about them ? ( except bypass fets )
    +1

  4. jhon Says:

    great job, but i wanna to know about the transistors is my dude thanks!

  5. guitarprice1992 Says:

    does this diagram really works?

  6. Ulises Says:

    Hi men, great work, i will like to do it, but can you send me the list of materials please?

  7. AAron Says:

    Hey man, really nice circuit board.
    But can you please tell me which transistors and diods you have used for this layout?
    I appreciate the information thx.

  8. Tomica Says:

    Hi! This looks awesome man!
    I realy like to build it… but I don’t know which transistors and diods should I use.

    Could you please send me values of them?

    Thank you very much man!

  9. Tomas Says:

    Hello, built this pcb one day ago. Plugged it into JCM800, and it sounds just like a beast! Lots of mild overdrive, wide tone control, reasonable boost and clear sound! Build it with full confidence! Thanks.

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