Re: HV power source.

• To: tesla-at-pupman-dot-com
• Subject: Re: HV power source.
• From: Jim Lux <James.P.Lux-at-jpl.nasa.gov> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Mon, 31 Aug 1998 17:43:06 -0600
• Approved: terryf-at-verinet-dot-com

Tesla List wrote:
> 
> Original Poster: Hollmike-at-aol-dot-com
> 
> Ben,
>    Using a car coil for a TC power supply has been around for a long time.
> All that is required is to have a make and break controller on the 12V
side of
> the coil.  The trick is to have that controller able to break high current
> without frying the contacts due to the inductive load.    I used a SPDT, 24V
> relay that was wired to be  self-vibrating.  You will want to put a good cap
> across the relay contacts to supress the arc when it opens itself. 

Like a standard automotive "condensor"... They have low internal
inductance, relatively low loss, and they are designed for the
application.
>   Oh, and they are already in oil, so I wouldn't bother to remove the case.
> The one I built got rather hot after running for a while, but it didn't seem
> to hurt the thing.  Maybe just immerse the coil, case and all in a bucket of
> oil to help it run cooler.

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