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RE: [TCML] Secondary and Primary Assistance

It's not intuitively obvious, but there are occasions when a small coil can accomplish things that are very difficult with a larger coil.  Yes, I can see how directing the output from a big coil to a small target on a piece of pipe (and trying to closely observe the results) can be difficult.  I love my little coils!

Regards, Gary Lau

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of bartb
> Sent: Saturday, March 22, 2008 8:16 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Secondary and Primary Assistance
> Hi Gary,
> I tried it. Ran my 4.5" coil with a 30" length of sonotube. Got zapped a
> couple of times, so decided to isolate myself a little better. I put the
> sonotube near the coil (without me) and ran it. I saw no distinction
> between ink or non-inked areas. This is an untreated sonotube. The
> output is probably 200kV, but still nothing discernible. However, in a
> coiled situation, there may be some losses. However, I really doubt the
> losses are discernible.
> Bart
> Lau, Gary wrote:
> > As Scott suggested, I think the most revealing test would be to hold a sample of
> the printed form up to a small sparking Tesla coil topload and see if the sparks want
> to surface track on the printed portions more-so than the unprinted portions.  A real
> easy test if one has a piece of Sonotube available; unfortunately I do not.  I don't
> know at what voltage a Megger (Meager?) operates, but probably the closer to
> actual TC voltages, the better.
> >
> > Using what I have, I just held a piece of 4" SDR PVC pipe with un-cleaned
> printing on it, to the sparks coming from my bug zapper-powered mini coil
> (http://www.laushaus.com/tesla/bzt_coil.htm ).  I was unable to see any effect that
> the printing had to the sparks.  However, when I drew a line with a graphite pencil
> on the PVC, the sparks made a very bright surface track along that line.  Similar
> behavior when I sprayed a water mist onto the PVC, though not as bright as the
> graphite.
> >
> > If someone has a piece of Sonotube and a small coil available, please try that?
> >
> > Regards, Gary Lau
> > MA, USA

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