This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Thursday, January 31, 2019

ThroBak Strange Master

Essentially a Rangemaster with a switch selecting the input cap (Hi/Lo) and another switch (Ge/Si) selecting between a germanium or silicon transistor. The bias pot helps to fine tune the bias (imagine that lol) differences between germanium and silicon modes. Other transistors can be used other than what's specified. Something in the 100-120 hFE range for the germanium and something around 250 hFE for the silicon. Schematic here.



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14 comments:

  1. wainer.said@gmail.comFebruary 7, 2019 at 1:48 PM

    not working, just siren noise

    ReplyDelete
  2. BrewBeckFebruary 8, 2019 at 8:34 AM

    Built this a couple days ago and I'd say its verified. Tried a couoke of 2SD30's. One around 50 hFE, and one around 160 hFE. Preferred the 160 hFE. Sounded a little muddy until the boost knob got past 2 o'clock or so.

    ReplyDelete
  3. Max PietriniFebruary 17, 2019 at 4:38 PM

    It is possible to use a Russian MP38A in place of 2SD30?

    ReplyDelete
    Replies
    1. Effects LayoutsFebruary 17, 2019 at 5:04 PM

      I would think so. I've built several Rangermaster clones with those.

      Delete
    2. Max PietriniFebruary 18, 2019 at 1:23 AM

      Thank you,I built a Tonebender with this one and sound pretty good. I try.

      Delete
  4. Max PietriniFebruary 19, 2019 at 10:13 AM

    Verified.MP38A in place of 2SD30. Very nice sound.

    ReplyDelete
  5. wainer.said@gmail.comFebruary 21, 2019 at 6:46 PM


    It works
    more siren noise continues

    ReplyDelete
  6. DueyJuly 20, 2019 at 6:32 AM

    Totally Verified! Killer

    ReplyDelete
  7. Muumi6August 1, 2019 at 9:35 AM

    This Rocks!!!

    ReplyDelete
  8. tut tamJuly 3, 2020 at 2:22 PM

    Q1=2N1308 can use?

    ReplyDelete
  9. PlatendraaiertOctober 2, 2021 at 6:05 PM

    Build, funny pedal... good for experiments

    ReplyDelete
  10. AldaJuly 15, 2024 at 10:08 AM

    Mine is popping when chosing transistor, do you have any issues of it?

    ReplyDelete

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