Re: Elevating Secondaries (was Re: First Spark)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net> 

Does it really need to be non conductive? And, does it have to be 1" in
diameter?

here's an idea... scrounge a automobile jack (any kind, but if you want
motorization, then use a scissor jack)... Use an insulating spacer (which
could be a 12" length of suitable plastic pipe (or a bundle of same) between
top of jack and bottom of secondary.  Now the jack runs at ground potential.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, September 11, 2004 5:13 PM
Subject: Elevating Secondaries (was Re: First Spark)


 > Original poster: Mddeming-at-aol-dot-com
 >
 > In a message dated 9/11/04 12:25:06 PM Eastern Daylight Time,
 > tesla-at-pupman-dot-com writes:
 > Original poster: "Ed Phillips" <evp-at-pacbell-dot-net>
 >
 > "> Well my first try at a coil worked a little. It is 15Kv 30ma NST and
the
 >   > first try was at 8 * in.  I do have a question. Should the bottom of
the
 >   > secondary coil be even with the primary, above or below it?
 >
 > This essentially just changes the coupling coefficient. Adjust for best
 > results."
 >      This follows a well-known principle in the avionics business:
 >      "Tune for maximum good."
 > In other words, as Antonio says, fiddling around to get the best sparks.
 >
 > Ed
 >
 > Hi Ed, All,
 >      In keeping with your suggestion, I am looking for a low-rpm motorized
 > jack screw with a large (~1") diam. non-conductive screw, nut, and base
 > plate. Here in the hills of WV, there is a plastics fabricator where I can
 > have one made, but they want my "left one" as a down payment.
(((  Anyone
 > have a line on a surplus place that might handle an item like this?
 >
 > Matt D.
 >
 >