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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: The choke as parallel reactor draws a small amount of AC current. posted by shermanr@prw.net on May 8, 2009 at 12:24:36:
The chokes I've seen have resonances around 5 KHz, IIRC. This means they look like capacitors above that point. The capacitance involves the magnet wire insulation and air, and it likely has fewer problems than the typical synthetic polymers (polyester, polypropylene) used in line-rated suppression caps.
The size of the choke determines the magnitude of the parasitic capacitance and the winding resistance. The smaller chokes seem to be less effective, so your big one should work as well as or better than the typical 193L.
I don't use chokes in my setup, as I've found good performance with R-C filters using the Wima metallized paper line-rated suppression caps.
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Follow Ups
- Lots of questions. - Al Sekela 19:38:07 05/08/09 (0)
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