RE: [TCML] How about some Tesla Coiling?

["Derek" <tesla@xxxxxxxxxxxxxxxxxxxxxxxx>]

Jeff, all

I suspect it really depends on the average power, I could charge up some
large capacitors for a day at 5W draw from the mains and then run a large TC
from them giving very large arcs for a second or so.

 Is that classed as 5W draw ?

DRSSTC's can easily be made to give 1 foot arcs in short 8uS (or so) bursts
which look continuous, average power is very small though

Even Classic Coils are not Continuous.

Maybe a 300Kv Marx fits this bill? Low power draw and 1 foot arcs. 

I suspect the definition of this challenge needs to be more specific..

Cheers
  Derek http://www.extremeelectronics.co.uk 

 

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of David Rieben
Sent: 15 February 2008 14:21
To: Tesla Coil Mailing List
Subject: Re: [TCML] How about some Tesla Coiling?

Hi Jeff, all,

I wonder if the 30 watts vs  6" sparks claim was based on actual wall plug
power draw or was based on the total energy of primary C (in J or watt/sec)
discharge per bang x BPS, or possibly even just the energy per bang? I, for
one, would be highly suspect of a 6"
or 12" discharge claim from a mere 30 or 35 watts of actual wall plug power
consumption. Am I being overly pessimistic?

David


----- Original Message -----
From: "Jeff Behary" <electrotherapy@xxxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, February 14, 2008 3:42 PM
Subject: [TCML] How about some Tesla Coiling?



Chip,

I have a challange for everyone, including me.  In the early days, when 
Tesla's coils were used for everyday attainable things, like powering an 
X-Ray tube or lighting some Geissler tubes, there are a bunch of table top 
models of machines like this:
http://www.electrotherapymuseum.com/2006/MiscOscillators/index.htm

In many texts, the smaller versions of these coils are described as making a

6" spark with 5 - 30 watts of input power.  I think as a collective group of

enthusiasts we should work on something similar - something attainable, on 
topic, and still requiring a fair amount of skill to accomplish.  I am 
willing to give space on my website for this topic, coil photos, etc. - I 
think its a great opportunity to demonstrate the efficiency of some of the 
modern circuits people are using to replace the kicking coil design Tesla 
originally used.

(I can stick to the old designs because its all I know.)

There is a point when all of the "theory" arguments are "point-less" to a 
certain extent.  I have a firm belief that until we can at least replicate 
the simple things Tesla did, and get it right, we have no reason to expect 
we can accomplish greater things, if that makes sense.

30 watts, 6 inch sparks.  To Tesla it was child's play, as these little 
units seemed to litter the tables of his labs in so many photos.  In the 
1897 lecture he mentioned 12" with 35 watts of power, but maybe we can keep 
it simple to start!

Jeff Behary
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