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.

Monday, February 2, 2015

Kay T-1 Tremolo

Here's a 1590A candidate. The Kay T-1 Tremolo originally came in a plastic housing with a treadle that controlled the speed. Apparently similar to the Vox Repeat Percussion tremolo, but a little smoother.



5 comments:

  1. https://www.youtube.com/watch?v=RKvCiYqsIPg

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    Replies
    1. Did you use this layout? The pedal in your video has 2 knobs. Did you add some mods?

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  2. this is the "O-Kay Tremolo"???
    or not yet??!?!?!?!

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  3. This won't work until you add the 43k resistor from the base of Q1 to ground. 47k works for me but schematic show 43k

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  4. Verified, it works if you put a resistor at 43K as in the original circuit.

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