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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Makes one wonder posted by tomservo on November 6, 2006 at 07:27:47:
The claim is that all of the inductance and capacitance in a power supply can't filter out rf noise and that the filter capacitors do not act like capacitors at rf frequencies. Implausible as it is although possible, it seems to me that an inexpensive rf filter makes far more sense than expensive cables if an rf problem exists. In real cases such as with incandescent light dimmers, power cords aren't going to offer much improvement. My experience is that rf induced noise generally occurs by direct induction into the active circuit elements themselves. Having lived on the infield of a commercial FM station (WTFM 103.5) for years, I've experience the problem first hand. I've also found that placing an amplifier directly on top of an aluminium table concentrated every 60 hz hum field within a mile and could couple them directly into a circuit. When there really are rf and other induced noise problems, I've always found that the solution was far more complicated than just replacing a power cord.
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- Re: Makes one wonder - Soundmind 05:13:23 11/07/06 (0)
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