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AMZ true bypass bords help!

Discussion in 'Burnt Fingers DIY Effects' started by FosterF, Jun 2, 2012.

  1. FosterF

    FosterF Tele-Meister

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    I Bought five of AMZ's true bypass boards that let you use a spst switch to control a relay. I put one of the boards together in a true bypass loop pedal to try it and there is a loud pop when I engage and disengage it. I added pull down resisters but it still popped then I brought the pull down resistors down to 470K. It's a little better but it still pops more than it should. Aren't these suppose to be completely click-free? Do y'all have any tips to help out?
    Thank ya!
    -Foster
     
  2. FenderLover

    FenderLover Poster Extraordinaire

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    I haven't used those boards, but I'm curious about your problem. Adding pull-downs are a good idea, but looking at the PC board layout, I noticed there is no diode across the relay coil. Is that right? If so, you might try that (cathode on the same lead going to battery +). Failing that, also add a .1uF cap there too.
     
  3. FosterF

    FosterF Tele-Meister

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    I will definitely try this! I'm new to using relays so which pins in the relay would that be?
     
  4. FenderLover

    FenderLover Poster Extraordinaire

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    They are the left two pins in the picture.

    AMZ bypass PCB.gif

    I'm sure you could get some good advice from Jack Orman too if you email him.
     
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