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Tube DIY Asylum: RE: "Singing" Power Transformer by mikeyb

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RE: "Singing" Power Transformer

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No, with no load (other than the bleeder resistors), the noise is essentially inaudible.

I placed a tight fitting block of wood between the power and filament transformers, and that reduced the noise to an acceptable level. Sort of a half baked "fix", but it will do for now. It's an aluminum chassis. Iv'e always used steel a chassis before, and wonder if that has something to do with the problem.


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Topic - "Singing" Power Transformer - mikeyb 07:35:48 10/11/19 ( 18)