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EMI Filters
- To: tesla@xxxxxxxxxx
- Subject: EMI Filters
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Thu, 05 May 2005 11:20:14 -0600
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- Delivered-to: tesla@pupman.com
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- Resent-date: Thu, 5 May 2005 11:21:32 -0600 (MDT)
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Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>
I have a 20A EMI filter wired in reverse between the wall outlet and my
variac. I have a volt meter attached to the variac outlet.
I was driving one of my ignition coils with a 600 watt dimmer in series
with a 2mF cap. As I powered up the variac, I could read the voltage
increasing on the volt meter all the way up to 120V. When I turned up the
dimmer, the voltage indication on the volt meter went haywire when the coil
began sparking. If I drew the ground away from the HV output, the volt
meter would stabilize as soon as the sparks stopped.
What have I missed here? This isn't normal, is it??!! Could the EMI filter
be bad?
Paul
Think Positive