Re: EMI Filter Freq

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

YOU're likely to see LOTS of noise at higher frequencies...  And at
harmonics of the power line (or breakrate) frequency as well.  The filters
are a good thing

Tesla list wrote:
> 
> Original poster: "Jim Mora by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jmora-at-jetlink-dot-net>
> 
> Hello All,
> 
> I am about to first light my 8" coil. Assuming my toroid doesn't turn
> out to be too big, my Frs should be around 105 kHz.
> 
>  I bought a couple of surplus TDK 20 amp filters (ZAC2220-11). Inet
> research reveals these drop 40dB in differential mode -at- 1.5 - 30 Mhz,  "
> 5 - 30 Mhz, common mode.
> 
> EMI question:     will most of the noise the coil generates to the mains
> be close to the resonance Freq. (thus making these TDK's paper weights)
> or am I likely to see much noise in shorter wavelengths in the form of
> harmonics?