Re: [TCML] Spark gap assembly, acrylic?? and toroid size

[futuret@xxxxxxx]

Nicholas,

I used lexan?for some of my rotary gap rotors, but I limited the power on these systems
to 1500 watts or less.? I also verified that the lexan didn't get too hot
and didn't soften, etc.? A well-designed system will have lower gap
losses, making the rotary run cooler.? I used steel electrodes with 
nuts on both sides to hold the electrodes in place on the rotor.? 
Generally speaking, larger more powerful coils will stress the gap
more and it will run hotter.? My electrodes ran quite cool in the
setups I used.? I never use Lucite (Plexiglas) in a?rotary gap?because it's brittle.

???????????http://futuret.110mb.com

Cheers,
John


-----Original Message-----
From: John Matok <jmatoknoon@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Wed, 16 Jul 2008 4:51 pm
Subject: Re: [TCML] Spark gap assembly, acrylic?? and toroid size



Scot,

You said that Lexan is good for low temperature applications, but is it
suitable to use in a spark gap?  On the website that I provided, the plans
said to use Lexan.  How hot can the Lexan get if it's not in direct contact
with the copper?  How hot do spark gaps get in general?

Nicholas Goble



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