Re: additional transformers [rolled caps]

From: 	Peter Electric[SMTP:elekessy-at-macquarie.matra-dot-com.au]
Reply To: 	elekessy-at-macquarie.matra-dot-com.au
Sent: 	Saturday, August 02, 1997 4:05 AM
To: 	Tesla List
Subject: 	Re: additional transformers [rolled caps]

Tesla List wrote:
> From:   Julian Green[SMTP:julian-at-kbss.bt.co.uk]
> Sent:   Thursday, July 31, 1997 11:15 AM
> To:     tesla-at-pupman-dot-com
> Subject:        Re: additional transformers [rolled caps]
> >Thanks for the info on that, I will go 2" on my future overlaps. It
> >seems strange to me that sparks seem to travel much further along the
> >surface of an insulator, no matter how clean it seems to be. Maybe this
> >is due to microscopic impurities on the surface of the plastic?
> Yes I have noticed this effect.  If you have a small flourescent tube
> about 12" long then place it on the primary of your coil so that it lays
> across several turns, and run the coil.   You should get flash over
> between the turns.   On my coil I get 2" arcs that run along the surface
> of the glass.   Don't run for too long if you want to keep the tube.
> Julian Green.

I have already had this happen when I had my strike rail too close to
the top of the primary. It would always arc along the surface of the
plexiglass supports, even after I cleaned them with solvent. The arcs
were also around 2".

Cheers, Peter E.