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Re: Continuously variable primary

Original poster: "K. C. Herrick" <kchdlh@xxxxxxx>
I remember that! Also, the humungeous big coil, that usually lives there, was fired up. Off of 440, 3 phase; gigantic buzzing, sinuous arcs; the Navy (who owned the property) found out about it and...no more No. Cal. Teslathons there, or else imprisonment in the brig for sure! Also, a very nice large coil that was made by a young lady; had 3 legs with wheels so it could be moved around. Whose is the humungeous one?...I've forgotten. And the young lady?...she's no longer a coiler, I suppose. Pity... 

KCH

Tesla list wrote:
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)