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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

RE: How might such an oscillation be manifested, sonically?

A touch of edginess to the sound, if the oscillation is very far above the audible range. Can get worse if lower in frequency, such that you wouldn't want to listen. In one extreme case having nothing to do with a bypass capacitor, one of my Beveridge amplifiers was set into oscillation (by the output from a CDP) and promptly blew a fuse.

But the only time I can recall with a bypass capacitor, it was not very audible at all. I added the resistor empirically, whereupon I did hear that a slight tinge of edginess was gone. I don't think one can generalize; it depends upon the circuit, the values, etc. For sure, bypass capacitors do not always cause oscillation.

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  • RE: How might such an oscillation be manifested, sonically? - Lew 11:02:08 07/04/17 (0)


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