Re: OLTC II More action

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

Original poster: Finn Hammer <f-h-at-c.dk> 

Steve,

Not that I want to pose as a field controll "expert" but FWIW, I had good 
results with this setup, on a disruptive coil. The secondary is same 
dimentions as yours, even wound on the same type of blue polyethylene 
waterpipe.

http://home5.inet.tele.dk/f-hammer/tesla/museum/system/system.htm


http://home5.inet.tele.dk/f-hammer/firstsp.jpg

The bottom toroid, which I`d lower if I was using it today, is 75mm in 
diametre.


Hope this helps, Finn Hammer


Tesla list wrote:

>Original poster: "Steve Conner" <steve.conner-at-optosci-dot-com>
>Hi all
>After considerably more tweeking I have the OLTC II working pretty well. I
>cured the flashover/corona problem by modifying the strike rail, and fixed
>the spurious crowbar triggering by shielding the sense resistor.
>With the flashover thing fixed, and the crowbar circuit behaving itself, I
>was able to turn the voltage up as far as it would go. When I did, and I was
>pleased to find it would break out without a breakout point.
>The settings for this picture: 14uF tank cap, 1kV charging voltage (=7
>Joules), 100bps. I used low bps to quieten the thing down a bit, and limit
>the spark length. It doesn't really show in the picture, but they were
>getting pretty close to the primary circuit- I could see corona coming off
>the wires whenever the streamers swung near. It is great to watch at 100bps,
>the streamers roll around slowly, and make that "someone getting
>electrocuted in the movies" noise :)
>http://www.scopeboy-dot-com/tesla/oltc_Zappp.jpg
>(not a very good pix- camera shake)
>I could probably do with a small toroid underneath the big one to discourage
>the streamers from going downwards. Any suggestions from the field control
>experts? Could I get away with, say, a 15" diameter ring made of 1" copper
>tubing? Or should I use something fatter?
>Full details on how the OLTC II was made at
>http://www.scopeboy-dot-com/tesla/
>Steve Conner
>