Re: HV Book (wasRe: Electrometer design) (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 16 Jul 2004 10:20:38 -0500
From: Ralph Zekelman <hyperion@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: HV Book (wasRe: Electrometer design) (fwd)

Hello Malcolm,

How is the Mrs.?

The storm came thru Tuesday, at around 6 PM. That was the start of
a 47.5 hr power outage. Had to toss a lot of stuff from the fridge and
freezer. A bummer. The beer supply is cold again.

Re the item below:
Most encyclopedia articles and most books show the "classical"
Tesla coil circuit with the capacitor across the transformer. Ditto
for spark-gap transmitters. My first efforts in coiling all used that
circuit. I daresay that only Pupman listees have been enlightened
to use the other circuit with the cap in series and the SG across
the secondary.

The brief mention (by Terry?) of photon effects as the "messenger
particle" for  the RF field is interesting. I think quantum effects
for a TC are as applicable as they are when I go thru a doorway. Just
IMHO, I do not think they apply. Interesting tho.

Regards,
Ralph



----- Original Message -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: <hvlist@xxxxxxxxxx>
Sent: Monday, July 12, 2004 8:48 PM
Subject: Re: HV Book (wasRe: Electrometer design) (fwd)


> Original poster: Steven Roys <sroys@xxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Tue, 13 Jul 2004 13:13:53 +1200
> From: Malcolm Watts <m.j.watts@xxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: HV Book (wasRe: Electrometer design) (fwd)
>
> On 12 Jul 2004, at 16:28, High Voltage list wrote:
>
> > Original poster: Steven Roys <sroys@xxxxxxxx>
> >
> >
> >
> > ---------- Forwarded message ----------
> > Date: Mon, 12 Jul 2004 14:12:05 +0800
> > From: Peter Terren <pterren@xxxxxxxxxxxx>
> > To: High Voltage list <hvlist@xxxxxxxxxx>
> > Subject: Re: HV Book (wasRe: Electrometer design) (fwd)
> >
> > Is the primary cap across the transformer so regrettable? I have
> > always run mine this way. My 32 inch coil generates 96 inch sparks
(ie
> > 3 times ratio) although I do run at a high break rate of 1200bps.
I
> > have not been able to achieve similar results with the spark gap
> > across the transformer. Peter http://tesladownunder.iinet.net.au/
>
> Not if it works for you. Is your system using NSTs or similar
> transformers or a pole transformer? It matters when it comes to
> performance differences and also the probability of you transformer
> having a long life. For the small system in the book which is using
a
> NST, a rather vulnerable transformer is being exposed to high
> amplitude ringing it could matter a great deal.
>
> Malcolm
> <snip>
>
>
>