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Re: more RFI filter questions

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 

Don't hook them up backwards.

You can run two in series.

Use some varisters on the 240 Volt out side and also use some between the
filters.  Another good idea on the 240 Volt side, before the varisters, use
some nice hash chokes --- 2 inch ID PVC schedule 40 tube approx 20 inches
long and wind with #12 AWG PVC (house wiring).  Cut up some 1/4 inch steel
rod and fill the center of each choke with the rod --- pack tight and
silicone in place.  One of these chokes on each hot side of the line, ie,
H1, H2.  This will filter out hash before it hits your filter network.

Dr. Resonance

 > I have bought four Corcom 30vsk6 filters off of  ebay. They are rated 30A
 > 250V. I would like to use them on my 5KVA pig powered coil. I have
 > the archives for answers to my questions but all I can find out is that
 > there is a lot of disagreement on the subject of connecting RFI filters.
 > So....Here we go again.  Do they work better if they are hooked up
 > backwards? Will placing two filters in parallel lower the attenuation to a
 > more useful level for tesla coil frequencies? Do I ground the filter cases
 > to the mains ground or do I use the coil's RF ground?
 > Thanks,
 > Steve Vance