[Prev][Next][Index][Thread]
Re: Latest magnifier results
Subject: Re: Latest magnifier results
Date: Tue, 10 Jun 1997 02:00:45 -0400 (EDT)
From: richard hull <rhull-at-richmond.infi-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
>
>Wild Bill Emery and I built a new primary for our magnifier Saturday.
>We increased its diameter by a total of four inches which reduced
>coupling to an acceptable degree (nope, we have not yet measured the
>actual value).
snip
>We experimented with using a piece of 10 inch wide aluminum flashing
>as a transmission line. I expected horrendous corona off the edges.
>Nope, works very well, we saw no transmission line corona at all. It
>seems that the same physics which allow flashing to serve as a good
>low impedence ground conductor also allow it to serve as an admirable
>low impedence high voltage transmission line for magnifier work.
>Downside: it tens to flap a bit in light breezes.
>
>Next on the agenda: a new 100 amp breaker has to be installed, and
>we'll try moving up on the top load capacitance. We designed a new
>way of stacking our 36 by 8 inch toroids, so we'll probably next
>attempt two toroids. We'll also be moving up our tank capacitance
>from 0.015 ufd to 0.03 ufd. We're gonna leave the variac bypassed
>for now.
>
>
>Bert Pool
>bertpool-at-flash-dot-net
>
>
Good goin' guys!!!
Glad to hear you are over the hurdle of 10'. That variac "high order"
number sounded fearsome. I hope it is repairable!
the transmission line is a real question area. I have seen our own Alex
Tajnsek run a length of bare 12 guage wire for a transmission line on
his
3-5 KW system with little corona! This is shown in the rear
photographic
section of my book on the CSN. There is physics and balance here, but
it is
complex and not a trivial explanation to be found.
Keep up the good work down in the lone star state.
Richard Hull, TCBOR