Re: Ungrounded Secondary

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

Original poster: "Gavin Dingley" <gdingley-at-ukf-dot-net> 

Hi,
if you connect a "top-load" to either end of a secondary coil, then you will
find it will resonate at half the usual frequency, i.e. at half-wave
resonance rather than quarter-wave, providing the coil is positioned
horizontally (parallel to the ground). This is only if all things are equal,
which they will not be due to dramatic changes in the capacities involved,
so resonance will be at an entirely, almost unrelated, frequency (usually
much higher).
If you mount this arrangement vertically, the bottom "top-load" will arc and
make its own connection to ground, resonating somewhere around quarter-wave.

Cheers,

Gavin


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, February 14, 2004 7:02 PM
Subject: Ungrounded Secondary


 > Original poster: "explorecraft" <pariah-at-explorecraft-dot-com>
 >
 > Hi -
 >
 > I would like to wire the secondary
 >   with toroids on each end,
 >   rather than a single toroid on top
 >   and the other side grounded.
 >
 > My goal is not for sparks or arcs,
 >   but rather to use the output
 >   for other purposes, so I will
 >   be running a bit different tham
 >   standard 'breakout' design.
 >
 > I haven't seen this done,
 >   but I assume someone else has
 >   already done this somewhere,
 >   I simply can't find any references.
 >
 > Anyone here know where to find
 >   documents referring to a
 >   'floated ground secondary'?
 >
 > thanks,
 > http://www.explorecraft-dot-com/
 >
 >