Niels Mayer wrote:
> If the "close" has to do with induced or actual 50hz hum, perhaps
> frequency-doubled via rectification:
It's the residual ripple for the DC that comes with 100 Hz. 50 Hz hum is
'send' by the transformer and could be heard as additive analog audio
signal, because of the 'electric smog'.
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Received on Sat May 29 00:15:09 2010
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