Re: Rotary Spark Gap.

From: 	Joshua Resnick[SMTP:seraphim-at-WPI.EDU]
Sent: 	Thursday, December 04, 1997 12:32 AM
To: 	Tesla List
Subject: 	Re: Rotary Spark Gap.

> From:   Barton B. Anderson[SMTP:mopar-at-mn.uswest-dot-net]
> I would have concerns using plexiglass for an RSG. What I've learned
> off
> this list is thatplexiglass is "lossy" or in this application maybe it
> would
> be more appropriate just to say
> that it would "melt" on you. Not a good for disk spinning at 3000rpm.
> An
> electrode comes
> loose at that speed and "OUCH" to anyone or anything in it's path.
> Many have used a composite known as G10 or a metal disk which is
> isolated
> from the motor.
> I personally am using a metal disk but do intend to move to a G10
> composite
> in the future.

I have concerns as well for the melting temp of Plexiglas.    I'm going
to put together a G10 disk as soon as I can get my hands on some.  I
lathed some stainless steel electrodes and insulating standoffs to mount
them into a lower temperature tolerant disk (i.e.. Plexiglas) but I'll
install them in the new disk as soon as I can cut it.

*Does anyone know of a good supplier of 1/2" G10 preferably already cut
into a disk shape?*
Thanks for your response.