Re: Proposed capacitive transformer TC?

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

Original poster: "Jolyon Vater Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>

Another point -if the  "indirectly-coupled" circuit is rearranged so that
in series with L2 base and ground, and the capacitive coupling between L2
and metal plane is replaced with a wire connection to discrete capacitor
with value of 1nF (as in  the "direct-coupled" circuit)  aren't the two
systems in fact the same?

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, August 06, 2002 4:36 AM
Subject: Re: Proposed capacitive transformer TC?


> Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>
>
> Tesla list wrote:
> >
> > Original poster: "Jolyon Vater Cox by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>
> >
> > Antonio,
> > Sorry but the amended schematic you posted appears garbled -perhaps
> > alignment on different on my computer is to that on your machine?
>
> Verify if all the characters used, including spaces, have the same
> width. A drawing made with one of these fonts places all the
> characters in a regular grid. The courier font is identical to
> what comes out of a simple typewriter.
>
> > Also http://www.coe.ufrj.br/~acmq/tesla/mres4hp.jpg
> > and
> > http://www.coe.ufrj.br/~acmq/tesla/mres4hp1.jpg
> > appear to be missing from your website.
> >
> > Sorry for any inconvenience- hope to read these soon,
>
> Oops.. I forgot to upload the images. I made a test at full power.
> The system works reasonably well, producing corona at the antenna
> and arcs to grounded objects. It's less powerful than the directly
> coupled version, but the reasons for this are clear. The energy
> transfer takes twice more time and cycles, and much more energy is
> lost in the way.
>
> The system running:
> http://www.coe.ufrj.br/~acmq/tesla/mresctw.jpg
> Corona at the antenna (I would not call this streamers):
> http://www.coe.ufrj.br/~acmq/tesla/mresctcr.jpg
>
> The schematic is:
>
>                        (=====) Terminal
>                           |
>                           L2
>                           |
>    o------+--C1--+----(=) | (=)
>           o      |        |
>   PSU    gap     L1       |
>           o      |        |
>    o------+------+--------+-o Ground
>
> PSU: 5000 V, 30 mA, NST
> C1: 1 nF MMC (10 x 10 nF, 1000 V, with 2 x 10 MOhms in // with each)
> L1: 314 uH (95 turns of insulated #18 wire in a 10 cm PVC tube)
> L2: 28.2 mH (1152 turns of #32 magnet wire on a 8.8 cm PVC tube)
>
> A CTTC - Capacitive Transformer Tesla Coil. Is this something new?
>
> Antonio Carlos M. de Queiroz
>
>
>
>