Re: MOT current

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: tesla <tesla@xxxxxxxxxxxxxxx>

Hi Steve Et al

Yes that works well, Ive built a coil just the same as that using the same
MOT PSU config and it goes like a train just like yours. Mine is the same as
yours and also Mike Wood;s on "drilling" TC coil site.

The difference here is at the heart of things. You will note that you have
(we have ) a  Capacitive load. With the bigger coil I'm using a bridge
rectifier ahead of the caps hence the change in the character of the load.

Thanks for scopeboy site used it to make my single MOT coil which makes arc
of about 1 meter and goes very well. Did not use capaitoers across the
diodes BTW all seems ok without. Was able to use two MOT's in seriesa for
the charging inductor and have same Cp of 12.5nF
Best
Ted
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, January 15, 2006 6:10 PM
Subject: Re: MOT current


> Original poster: Steve Conner <steve@xxxxxxxxxxxx>
>
> Hi all,
>
> My DC coil gets pretty good output from a single small MOT with the
> shunts left in:
>
> http://www.scopeboy.com/tesla/burnt/turbotriodal.jpg
>
> I think that picture corresponded to a power level of about 2kW. I
> was using 37.5nF of tank capacitance and the DC bus voltage was
> probably around 9kV which would give a charging voltage of around
> 17-18kV. The gap motor died during that run, but I hope to get a new
> rotary gap built sometime.
>
> This system uses a 4x voltage multiplier to give a nominal 10kV DC
> supply centre tapped to ground. I like this setup because the MOT
> core can be left grounded. The schematic is here
>
> http://www.scopeboy.com/tesla/tc2schem.html
>
> If I wanted to increase the power further I would just drive it off
> several MOTs in parallel.
>
> Steve Conner
> http://www.scopeboy.com
>
>
>