Re: 7.1Hz, how the heck did Tesla succeed?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Steve Conner <steve@xxxxxxxxxxxx>



> But this brings up a big issue.  If Tesla accomplished it, HOW DID HE DO
> IT?

He didn't.

There is no evidence that he ever got the earth to resonate using his 
equipment. He just used a receiver to measure propagation of impulses from 
lightning strikes, the same way as we measure the Schumann resonance today.

I have read most of what Tesla wrote on wireless power transmission and 
it's still a mystery to me how he thought he was going to do it.


>Just observing what happens when a big TC is operated *near* an operating
>X-ray tube would be interesting.

In Craggs and Meek's "High Voltage Laboratory Technique" there are 
descriptions of a few different kinds of X-ray machines driven by Tesla 
coils and using the tube itself to rectify the output.

One impressive setup put out over 1MV peak at an incredibly low 180Hz. The 
air-cored secondary coil had a huge number of turns arranged in 125 stacked 
pies, and the whole system was enclosed in a steel vessel full of 
pressurised freon, with a thin laminated steel inner shell. The primary was 
series resonated by a big capacitor and driven by a 180Hz alternator. It 
put about 2kW out to the X-ray tube, weighed 1500lbs, and seemed to be 
about 30% efficient as far as I could tell from the text.

Steve Conner