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New Quickie Build -- Microphonics

I finished my Quickie today after receiving it Friday night. It was a very straightforward and enjoyable build, and the instructions were very clear. Thanks to Doc and the crew for another great kit. (I built and modified an original Foreplay many years ago, which has just started to give me problems.)

After confirming all the voltage measurements, I plugged it into my system to try it out. I like the way it sounds so far, but I am getting definite microphonics in both channels, one more than the other. If I tap the chassis plate, there is a clear ring coming from the speakers. I am inexperienced with this issue. Is this a product of the specific tubes, the type of tube, or something I could have done better during the build? What is the best procedure for diagnosing the cause and eliminating the problem? I would appreciate any input.


Peter Wendell


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Topic - New Quickie Build -- Microphonics - induna 15:31:03 10/04/09 (5)

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