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Thread: Twin with no vibrato..

  1. #1

    Twin with no vibrato..

    Greetings...new guy here. A little help, please. 1971 Twin has no vibrato. I replaced V5, now footswitch works, and roach light blinks. I can hear the clicking , but there is no actual vibrato mix going out. Just strait . Reverb is good. Any ideas, parts ? I can solder, have diagram and schematic. Thanks, I appreciate your help. Bob

  2. #2
    Forum Member Offshore Angler's Avatar
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    Re: Twin with no vibrato..

    Quote Originally Posted by rexyellowdog1 View Post
    Greetings...new guy here. A little help, please. 1971 Twin has no vibrato. I replaced V5, now footswitch works, and roach light blinks. I can hear the clicking , but there is no actual vibrato mix going out. Just strait . Reverb is good. Any ideas, parts ? I can solder, have diagram and schematic. Thanks, I appreciate your help. Bob

    Dumb question, but is the footswitch plugged in and operating?
    "No harmonic knowledge, no sense of time, a ghastly tone, unskilled vibrato, and so on. Chuck is one of the worst guitar players I know" -Gravity Jim

  3. #3

    Re: Twin with no vibrato..

    Quote Originally Posted by Offshore Angler View Post
    Dumb question, but is the footswitch plugged in and operating?
    Hey, thanks for asking. There are no dumb questions. I really appreciate your response. Footswitch works. I first had nothing, I replaced V5, now have on / off, light flashing, and I can hear ticking. Speed pot works, just no intensity. I'm gonna do some simple checks today, like resistors, and a couple voltages.

  4. #4

    Re: Twin with no vibrato..

    Just an update ; after checking the resistors, and throwing in a few new caps, I tested the voltage on the varistor side of the opti couple / roach. Was solid, no movement at all. Ordered a roach from Tube Depot, will let you know the outcome. When I install it. Thanks for your interest. Bob

  5. #5
    TFF Stage Crew
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    Re: Twin with no vibrato..

    Yes, please post what you find out-

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