[TCML] VTTC Curent Draw
skip at ladybughell.com
Wed Sep 24 16:46:50 MDT 2008
Is it possible that you have a current measuring problem? What is
the rating of your circuit breaker? I would expect things to be
blowing up at that much power/ How are you measuring the
current? If you are using a digital type of meter, you may be
getting interference from the coil. The best way is with an analog
meter and a current transformer combination.
At 10:12 AM 9/24/2008, you wrote:
>I've been tinkering with my 833C for several weeks now. Unfortunately
>no matter what I do the thing seems to want to pull 50A at full voltage.
>I'm getting some pretty nice performance out of it now [20-24"] in
>continuous mode @ 100V/50A. I know the coil is in tune, I've tried removing
>turns, and I've tried adding a little capacitance and both of those result
>in shorter raspy sparks. I don't think the grid is the problem. I've tried
>both CW wound grid coils and CCW wound grid coils. All my grid coils have
>been 22 turns. My primary and secondary are both wound CW.
>I'm using two large (nearly identical) series wired MOTs which go
>through a doubler consisting
>of a rectifier and 2nF 13kV filter cap. My tank cap is a 12kV 2nF mica
>transmitting cap. My grid resistor is 10K, and I have a 2nF doorknob in
>parallel with that. My primary is 28 turns of 8AWG. My secondary is 17" of
>What could be causing this current draw? Is the amount of current
>I'm drawing in line with the spark output I'm getting?
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