Re: [TCML] static gap singing coil hybrid.

[Scott Bogard <sdbogard@xxxxxxxxx>]

Ted,
     The sad thing is I have enough MOTs to do that, the sadER thing
is that they are all burned except about 5...  I've never had good
luck stacking MOTs beyond 2, unless the system was heavily ballasted,
perhaps DC is different?  I do find myself curious, why are you using
a SRSG with DC, wouldn't it be better to go ASRSG for more freedom of
spark characteristics?  In any event my house can't handle 1kW yet,
and when it can I still have a pig that has been itching to be used
for 2 years now almost...  Imagine one of those with a doubler!  In
any event I just want the quick and dirtiest Dc coil I can scrounge to
prove my triggered spark gap, even if it is just a single MOT with a
diode, two caps for filter, and a salt water (or graphite if I can
find any) charging resistor.  I'll worry about making an elegant
performer after I make some noise, for now my humble twin MOT AC coil
gives enough bang for my buck to keep me happy on that front!
http://bogard.110mb.com/TC3.html

Scott.


On 1/27/11, Tesla <tesla@xxxxxxxxxxxxxxx> wrote:
> Team
>
> I've had great success with MOT's and DC design also using more MOT's in the
> charging inductor, hate to go on but this was very low cost and big power
> coiling just using MOT's as you are thinking about
>
> My main supply is 6 MOT's,  3 MOT's centre ground per side) for a little
> over 12kvac (No shunts)
> Rectifier FW bridge with lots of 1n5403's
> PI DC filter C,L,C (The L is 4 gapped MOT's by 0.3mm) two in series of 2 in
> parallel
> Ring up L same as DC filter
> 300bps SRSG,  90nF Cp, really big toroid system (12" flexiduct)
> Goes amazing, well over 3m at about 10kVA
> Very smooth operation
>
> Rgds
> Ted L in NZ
>
>> Phillip,
>> I was planning on eventually building a DC coil eventually anyway, and I
>> have enough microwave oven capacitors and diodes that I could build a MOT
>> based level shifter with all the current I can handle, not sure if that
>> would cut it or if I would need a resonate charging inductor, which could
>> be made with more MOTs in theory.  Since it is triggered it shouldn't need
>>
>> an especially high voltage I suppose, so 4kV was where I was aiming.  The
>> biggest hurtle I see is cooling, having that arc that close to glass for
>> prolonged periods will be tricky, but maybe if I run cold air or oil or
>> even water through the tube, its life expectancy should be similar to
>> glass jar capacitors I'd imagine, even if I only get 15 minutes out of it
>> glass tubing is a lot cheaper than IGBT's, and is easy to replace...
>>
>
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla