Re: [TCML] Single MOT Coil?

[Tesla <tesla@xxxxxxxxxxxxxxx>]

Team

I'd qualify some of the points Mark makes.

MOT's are magnetically shunted and do have some degree of current limiting. The current limiting characteristics and low voltage are very impacting for classic  AC designs but as the DC  dual level shifter with resonant charging designs illustrate it is possible to get 20 kV from a single MOT which is entirely adequate. Current input can be controlled by the size of the primary capacitor and break rate avoiding the current limiting issues. See theory at http://www.richieburnett.co.uk/dcreschg.html (Richie has a wonderful site with the best material on DC designs I’ve found)

I advocate the use of some power factor correction in these designs to lower the input current drawn.

http://scopeboy.com/tesla/tc2schem.html
http://www.capturedlightning.org/hot-streamer/drilling/dccoil.html


Rgds
Ted in NZ


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-----Original Message----- 
From: Mark X2 
Sent: Thursday, August 15, 2013 10:19 PM 
To: Tesla Coil Mailing List 
Subject: Re: [TCML] Single MOT Coil? 

Gary's right, go for a small NST. A MOT isn't current limited and the
voltage is just too low to get a decent working spark gap.

<SNIP>
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