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Author Topic: 1200s tremolo probs  (Read 2882 times)

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Offline Fritz

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1200s tremolo probs
« on: November 18, 2000, 07:36:00 am »
I have Sunn 1200s. Tremolo doesn't work any more. Apparently part of that circuit is in a circuit board. Iv'e tried to troubleshoot with no luck. I have tried to locate some of the transistors on the board to replace those and I'm not having any luck. Any suggestions?, can the board be found anywhere?
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Offline Dave Foxx

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1200s tremolo probs
« Reply #1 on: December 15, 2000, 03:48:00 am »
The transistors,you are looking for : originally 2N2102 which crosses to ECG128,also the 2N2923's cross to ECG289A.Just a bit of info for you.
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