RE: [TCML] Tank Circuit Design

["Thomas Ryckmans" <thomas.ryckmans@xxxxxxxxxx>]

Could anyone find the original link to the Terry paper? It would be useful
to add it to the Wikipedia page 
http://en.wikipedia.org/wiki/Tesla_coil
I have added a line to the "Typical Tesla Coil Schematic" box:
"This design is favoured when a relatively fragile Neon Sign Transformer
(NST) is used." A link to the Terry Fritz paper there would be nice.

BTW, the box also contains "An inductance, not shown, protects the
transformer", a remark that will, I am sure, trigger some debate on this
list... I would suggest we replace that by "a RC filter" or "a filter"...

Cheers

Thomas



-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of G Hunter
Sent: 29 April 2010 02:10
To: Tesla Coil Mailing List
Subject: Re: [TCML] Tank Circuit Design

It matters.  I suggest you place the spark gap in parallel with the power
supply, and the tank capacitor in series.  In this way, the spark gap can
pull double duty as a voltage limiter.  This is especially critical for
tesla coils based on neon sign transformers, as NSTs are relatively fragile
and are easily ruined by HV transients.

For a more detailed explanation with supporting data, please see the TCML
archive.

Cheers,

Greg

--- On Wed, 4/28/10, Miles Mauldin <teslamiles@xxxxxxx> wrote:

> From: Miles Mauldin <teslamiles@xxxxxxx>
> Subject: [TCML] Tank Circuit Design
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Wednesday, April 28, 2010, 2:55 PM
> Hi All,
>  
> Been looking at my design and doing some research, only to
> discover different designs for the tank circuit.  Some,
> including the old Popular Mechanics? articles, have the SG
> in parallel with the primary TC coil and the Cap in
> series.  Others, including Terry F's schematic, show the
> reverse with the Cap in parallel and SG in series.  Is
> there a reason for this difference or is it just a matter of
> design choice?
>  
> Thanks,
> Miles
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
> 


      

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