[TCML] Stand offs

[Dave Goodfellow]

I became frustrated at the unavailability of insulators for the top of my 
Tesla coils. I didn't want to give them away with a complete coil when I 
occasionally sell them on Ebay, so I made a silicone rubber mold of one of 
my ceramic insulators, and made exact copies in castable plastic. I do not 
assume that they will insulate high voltage as the ceramic ones will, but 
they do make a handsome standoff for a Tesla coil with a toroid on top. They 
can be seen here:

http://s205.photobucket.com/albums/bb11/dgoodfellow/?action=view&current=100_0465.jpg

http://s205.photobucket.com/albums/bb11/dgoodfellow/?action=view&current=100_0466.jpg

http://s205.photobucket.com/albums/bb11/dgoodfellow/?action=view&current=100_0472.jpg

I used to list them on ebay for $8.00 each plus shipping, but stopped 
listing them as work got really busy and interest seemed to diminish. If 
anyone is interested in having one, contact me privately, and I will see if 
my mold is still in condition to cast a few more.

Best regards, Dave Goodfellow

----- Original Message ----- 
From: <davep at quik.com>
To: "Tesla Coil Mailing List" <tesla at pupman.com>
Sent: Tuesday, April 01, 2008 10:29 AM
Subject: RE: [TCML] Stand offs


> >
>> This topic has begun to intrigue me.
>> Is there something EXTRA special
>> about the ceramic material in these
>> bushings?  If not, It occurred to me
>> that we could easily make our own
>> with a little clay, and a kiln.
>   Could be done, i guess.
>   However.
>   I've done some casual reading on the development
>   hours/years/dollars that went into those simple
>   seeming insulators.  I'd buy 'em:  Home brew
>   gets into a LOT of unknowns of
>   material/purity/lifeunderstress...
>
>   One might by analogy ponder the recent discussion
>   about the conductivity of the lettering on the
>   PVC pipe (If I'm recalling accurately???) as
>   illustrating the pitfall possibilities.
>
>   best
>    dwp
>
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