Re: [TCML] Pairing two seperate coils of different powers

[Steve Ward <steve.ward@xxxxxxxxx>]

Ive had my DRSSTC make connecting sparks with a pole pig powered SGTC (about
15 foot spark length between them).  Not only were the resonant frequencies
far apart, but the firing was surely not synchronized.  While not as
consistent as a proper twin coil, they CAN connect up given time.  I suspect
its because the ionized/heated path is a good enough conductor for the arc
and absolute electric field isnt so critical.

Steve

On Fri, Jan 1, 2010 at 9:24 PM, Lau, Gary <Gary.Lau@xxxxxx> wrote:

> There's a lot more to determining the relative phase of two Tesla coils
> than the direction of the windings.  Even if the two gaps were completely
> synchronized (which will NEVER happen), consider that if the two secondary
> systems differ in frequency by any amount (which will ALWAYS be the case),
> the phase will be out of whack in just a couple of cycles.
>
> But to your question, I don't think there's any hazard to allowing them to
> arc to one another, and that their NST's are different doesn't enter into it
> at all.
>
> Regards, Gary Lau
> MA, USA
>
> > -----Original Message-----
> > From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> > Behalf Of Norman Stepp
> > Sent: Friday, January 01, 2010 8:13 PM
> > To: tesla@xxxxxxxxxx
> > Subject: [TCML] Pairing two seperate coils of different powers
> >
> > A friend and I have two separate coils, his being powered by a 1500/30ma
> nst w/ a
> > rotary gap and mine being a 9000/20ma w/ a static gap. His primary is
> counter-
> > clockwise and mine is clockwise, which would make them out of phase. Is
> it
> > possible to allow the two coils to arc to one another without damaging
> anything on
> > either coil, being that there are two separate transformers of different
> powers?
> >  thanks, Norm
>
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