Re: Plastics question

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dave" <dgoodfellow@xxxxxxxxxxxxxx>

You never know what you will get unless you see the manufacturer's 
spec sheet on the plastic. Black Delrin works fine for primary forms. 
Other black plastics may not. I spray painted some plastic primary 
blocks with black wrinkle paint one time and couldn't get the coil to 
fire at all, despite everything being in the ballpark of tune. Had to 
re-make the primary blocks, then the coil worked fine, and that was 
the only change I made.
Proceed with caution.

Dave Goodfellow


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, January 30, 2006 12:31 PM
Subject: Plastics question


> Original poster: "B. McPeak" <bmcpeak33@xxxxxxxxxxx>
>
> Hello,
> I have some black acrylic that I plan to use for the supports for 
> the primary. Is there a chance that what ever gives it the black 
> color could be conductive? Should I get some clear instead?
> Brad McPeak