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output noise problem

 
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videoman
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PostPosted: Mon Apr 24, 2006 7:38 am    Post subject: output noise problem Reply with quote

I have a piece of analog musical equipment from the mid 80's--a Dynacord CLS-222 Leslie Simulator which is making a loud hum, I believe at 120 cycles, that rises and falls with the output level. Is this a power supply problem?

Any suggestions?

--David
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dolescle
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PostPosted: Sat Apr 29, 2006 8:47 pm    Post subject: Reply with quote

loud hums are usually associated with filter capacitors..Your musical equipment being old enough..try checking the filter capacitors on the power supply section it could be leaky.
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