Re: ferrites on lines?

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

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi Shaun,

I use ferrite beads on my big gap and small coil:

http://hot-streamer-dot-com/TeslaCoils/MyCoils/BigCoil/Rgap.jpg

The big ferrites are right on the gap electrodes (both rotor and stationary).

They work well to knock down RFI.  I would put them as close to the spark 
gap as possible since that is where they will do the most good.

Cheers,

         Terry

At 09:19 PM 5/11/2004, you wrote:
>I just aquired some ferrite beads.  They are 1 1/8 inch long x 1 inch OD x
>1/2 inch ID.  I was thinking of putting them on the hv wires between the NST
>and the Terry filter.  Has anyone else done this or have any knowledge of
>there use.  They should, in theory, attenuate the RF from getting into the
>NST.  There application was for a fire alarm system, one turn around the
>ferrite to reduce interference.  I don't have any specs.   The neon sign
>wire is a little thick for this so I was just going to put the wire through
>them.
>
>What do you think.
>
>Shaun