Original poster: "Scott Hanson"
<mailto:huil888@xxxxxxxxxxxx><huil888@xxxxxxxxxxxx>
Ken -
One of the coils at the '01 Nor-Cal Teslathon had a similar
arrangement for adjusting the primary L. I don't remember if
it was set up Saturday or Sunday, but the secondary got toasted by
a huge flashover/racing arc during the initial attempt to run the coil. It was
somewhat similar to your proposal, but used a grooved roller to
ride the copper-tube primary. I think the entire primary coil was
rotated via a gear motor, and the roller
arm was fixed. I've got photos somewhere ........ (pre-digital
camera era for me).
Regards,
Scott Hanson
riginal Message ----- From: "Tesla list"
<mailto:tesla@xxxxxxxxxx><tesla@xxxxxxxxxx>
To: <mailto:tesla@xxxxxxxxxx><tesla@xxxxxxxxxx>
Sent: Thursday, May 25, 2006 2:11 PM
Subject: Re: Continuously variable primary
Original poster: "K. C. Herrick" <mailto:kchdlh@xxxxxxx><kchdlh@xxxxxxx>
I'll prevail on Terry to re-post
<http://hot-streamer.com/temp/TCHTUNE.JPG>http://hot-streamer.com/temp/TCHTUNE.JPG,
embellished a bit from yesterday. I've added stiffening flanges on the
contact-carrier and springs to provide contact pressure. Plus, a few
misc. other changes (including a color change from the inadvertent yellow:
to get it into jpg I have to screen-save in pcx, then invert all the
colors, then save to jpg in the new colors).
(SNIP)