RE: [TCML] Secondary and Primary Assistance

["Lau, Gary" <Gary.Lau@xxxxxx>]

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

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of bartb
> Sent: Friday, March 21, 2008 9:08 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Secondary and Primary Assistance
>
> Agreed, hence the questions. It's funny when we say something is
> conductive. Everything is conductive at some point. It's probably just
> another one of those areas of being safe rather than sorry. One would
> need to hipot the ink at a distance and do the same for the non-ink area
> at the same distance and compare. DC mentioned he used a Meager, so
> maybe he did something similar to this.
>
> Take care,
> Bart
>
> Lau, Gary wrote:
> > With PVC forms, I remove the printing with Goof-Off solvent, only because it's
> easy to do and enhances the aesthetics.  I think it's important to accurately report
> what we know as fact and with there is to back that up, vs. what we assume and
> just _seems_ reasonable.
> >
> > Regards, Gary Lau
> > MA, USA
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