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Advice Needed on Suppressing Transient Noise
Try this -- I am assuming that you have 120VAC mains -- make the following
filter -- 1) from the two mains leads at the plug end, a 47nF/250 VAC capacitor 2) each mains lead connects to a 470 uH choke, 3) across the first outgoing choke leads, a 100nF, 250 VAC capacitor 4) a second choke consisting of two 2mH windings on the same core 5) a 100nF/250 VAC cap The cores and windings have to be "beefy" enough to handle a couple amps. You might be able to get away with using the cores from a PC power supply. This is the transient supression circuit in one of the ARRL switching power supply designs. It works in both directions. wrote in message ... I have an integrated amplifier that passes every spike and glitch on the the mains, generated from motors and transformers turning off/on in the house, even though I ran a dedicated feeder off the mains breaker panel to the "audio room". My other gear does not suffer from the sensitivity, so I am wondering what I can add to this particular amp to make it more immune to power line transients. Varistors or caps across the mains switch, ferrite beads, etc? Any advice is appreciated. Arcsound |
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