30MHz Spark Gap Testing - Is this real??

From:  Bert Hickman [SMTP:bert.hickman-at-aquila-dot-com]
Sent:  Wednesday, April 08, 1998 7:13 PM
To:  Tesla List
Subject:  Re: 30MHz Spark Gap Testing - Is this real??

> Someone said that the light from the gap is proportional to the
> current.  I am not sure I beleive that but it would solve the current shunt
> bandwidth problem.  If you have the antenna and long fiber cable in each
> channel of the scope, you can also measure the speed of light easily.
> Let me know if you have any questions on the details.
>         Terry
> .........................


I'd also suspect that the "frequency response" of the light arc plasma
may be comparatively low due to the relatively long decay times of the
excited gas in the gap. While the major current structures may be
evident, the finer ones may be lost... 

-- Bert --