Re: Lightning Arrestors (was Geek Pig)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-uswest-dot-net>" <bert.hickman-at-aquila-dot-net>

Chris,

The SiC element appears to be a single sintered cylinder, not a powder.
It is made by Line Material, and is labeled with a "LM 57" which MAY
imply that it was made in 1957?

Contact me off list if you have some questions about Quarter
Shrinking...

-- Bert --

Tesla list wrote:
> 
> Original poster: "Christopher Boden by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <chrisboden-at-hotmail-dot-com>
> 
> >Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> ><bert.hickman-at-aquila-dot-net>
> >
> >Chris,
> >
> >I've take a few pictures of the 9 kV Pyrex Arrestor. These include a
> >shot of the whole arrestor (about 15" long), a close-up of the chain of
> >spark gaps, and a close-up of the silicon carbide MOV. Arrestors made
> >from a combination of Silicon Carbide and spark gaps were commonly used
> >from between 1930 and 1970. They have more recently been supplanted by
> >Zinc Oxide MOV type. The pictures can be seen at:
> >
> >http://www.aquila-dot-net/bert.hickman/photos/arrestor1.jpg
> >http://www.aquila-dot-net/bert.hickman/photos/arrestorgaps.jpg
> >http://www.aquila-dot-net/bert.hickman/photos/arrestorMOV.jpg
> >
> >-- Bert --
> >--
> 
> Wow, that thing is absolutly beautiful! IS the powder held in place with
> cardboard???!!!!! I love the Gap, I hope I find a similar one in the small
> arrestor (the Big one I'm thinking will have a single gap, I don't know why,
> just a hunch). Where did you find that? It looks like from about '40 or so,
> am I right?
> 
> Thanks for the education! btw, can you email me off list? You have a lot of
> experiance in Quarter shrinking and the truck just dropped of 1200+lbs of
> capacitors here (250 of them, for the Thumper project) I have a couple
> questions for you. :)
> 
> thanks
> 
> Christopher "Duck" Boden Geek#1
> President / C.E.O. / Alpha Geek
> The Geek Group
> www.thegeekgroup-dot-org
> Because the Geek shall inherit the Earth!
> 
> _________________________________________________________________
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-- 
Bert Hickman
Stoneridge Engineering
Email:    bert.hickman-at-aquila-dot-net
Web Site: http://www.teslamania-dot-com