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Re: Important questions...

to: Sam

Avoid polyurethane -- after a year it will start cracking with changing
temps.  Bullseye brand (or equiv.) clear shellac offers good moisture
protection and will stretch to prevent cracking.  Dolph's AC-43 synthetic
HV air dry varnish works best on enameled magnet wire.

DR.RESONANCE-at-next-wave-dot-net


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From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com
Subject: Important questions...
Date: Sunday, October 04, 1998 10:53 AM

Original Poster: "Sam Barros" <sambarros-at-hotmail-dot-com> 

 Ok, here are the questions again:

 First of all: Is Enamel Varnish as good as Polyurethane varnish for 
insulating HV? How do the two compare? 

 Second: Could I make a PVC pipe capacitor, or a Plexiglas sheet 
capacitor that would compare in performance to those PE caps you guys 
use? Polyethylene is non-existent in here… But I can get some nice 
sheets of Plexiglas for 7 dollars each. They are squared, with some 30 X 
30cm and about 0.5mm thick. I figured out that several of them 
alternating with aluminium sheeting would make an easy capacitor. It 
will cost a lot, but I was wondering if it would be any good… How about 
PVC capacitors? Too lossy I suppose…

 I remembered what was the third question: I need a very good 
High-Voltage RF ground for some dangerous HV experiments (and than later 
for my Tesla Coil).
 I am thinking of burring a 30 X 30 sheet of brass some 30cm deed into 
the ground, putting salt on top of it and covering it with earth. Than I 
was going to hammer 3 1m long, 1cm diameter brass pipes into some damp 
ground, 30cm away from each other. And, finally, I wanted to put this 
metal sheet into this little water channel that runs behind my house and 
connect it all together with thick cables. The water channel is quite 
long and about 2 metres wide. Would it electrocute the ducks and fry my 
neighbours water-pumps if I did this?

 Thanks a lot!

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