[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [TCML] Lacquer
Peter,
The power on the second shot was exactly the same as the first...20%.
I agree that photos appear different for some reason. I don't know why.
The original intent was to photograph the "halo-skirt" corona, which we
found originated from the top winding (turn). After several additional
coatings of varnish, the "halo" disappeared, not to mention that we were
able to increase the input power and coupling without "racing sparks".
The flash-overs appeared as pinpoint sparks to the human eye; the camera
revealed these as actual flashover arcs. There was no mention on "type
of coil" when the benefits (or lack of) varnish as an insulator came up.
The article speaks only of insulation.
Without being picky, picky, picky; the results speak for themselves.
Hank
-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
Behalf Of Peter Terren
Sent: Thursday, April 08, 2010 6:22 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Lacquer
Firstly, the experiment with the conventional coil is not conclusive,
sorry. Power was "about 20%" in the pre shot with racing sparks. No
mention of actual values for the post shot and the sparks look very
different on the pics.
I am not saying the result is wrong, but it is highly likely the
original power level was not reproduced.
Secondly, DRSSTC's are different beasts in terms of coupling. Obtaining
better Watt's ratios (spark length/sec length) seems a lot easier. 13:4
= 3.25 does not seem remarkably efficient in this regard.
On the other hand using an SGTC coil with no special insulation, I have
Watt's ratios of 3.0 (96inches/32in). Others have claimed larger ratios
for SGTC's but I have not seen clear photos to show this. If you want
to follow this link copy and paste it into your browser.
http://tesladownunder.com/tesla_coil_sparks.htm#6 inch coil (the best
ones)
Nevertheless, the previous discussion of using ?Envirotex as a very
thick layer does really seem to provide a lot of protection.
Some years ago I started a TC project to dramatically outperform this
3.0 Watts number. A lot of special fabrication was done and I still have
everything ready to start some final plans and construction. One day
when I have a few moments........
Peter
On 8/04/2010 1:16 PM, Dr.Hankenstein wrote:
> Greetings,
>
> If you're not too sure on the effects of a good coating (or two or
> three) of varnish; please refer to a scientific evaluation on the
> following link:
>
> http://www.audiotesla.org/corona%20experiment.htm
>
> This should remove all doubt that varnish does more than just hold the
> winding in place and end the hypothetical armchair speculation. Dr.
> Spark has at least 80 coats of varnish on "Fatboy"---13+ footers out
of
> a 4 foot secondary proves it:
http://www.drspark.org/fatboy1_rebuild.htm
>
> Regards,
> Hank
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla