Re: [TCML] Off Grid Tesla Coil (sort of)

[Michael Robinson <muze801@xxxxxxxxx>]

Hi Jim,
Looks like you finally joined the TCML!

The most feasible solution that I can think of is to build a solid
state coil. Use 10 batteries in series to give 120v to drive some big
FETs or IGBTs, and you could probably get a good coil running.

Write back to me and lets get on the radio again. I'd love to help you
with this.

Thanks,
Michael Robinson - KE7AQL

On Tue, Feb 24, 2009 at 8:53 AM, Jim Harvey (UDN)
<harvey.james@xxxxxxxxxxxxxxx> wrote:
> Greetings,
> I am new to this list. I am a semi-retired EE now doing transmitter design
> of replica 20s and 30s gear (for fun)
>
> I've wondered the following:
>
> Has anyone built a Tesla coil powered by a large bank of batteries (say 10
> car batteries)? You can pull huge amounts of current from the stack and
> recharge them off the grid over a longer period of time. In that way, you
> don't hammer the AC power line while making lightning.
>
> Several years ago, I participated in the development of an x-ray generator
> (about 15 KW) that did exactly that. Supply output to the x-ray tube was 100
> to 150 KV at 100 to 150 mA. The result was a portable x-ray machine in a
> hospital that wasn't tied to a 240 VAC line. Just plug it in over night.
> Worked great.
>
> Thoughts, suggestions, criticisms, are appreciated.
>
> 73 & Stay Vertical,
>
> Jim Harvey (W7YV) - The Great Curmudgeon
> P.O. Box 18009
> Salt Lake City, UT 84118
> http://www.harveyclan.net
> http://www.harveyclan.net/w7yv.htm
>
>
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