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RE: Current in the Coil - was oil dielectric

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rob-at-pythonemproject-dot-com>

Somewhere at home I have a paper describing an old X-ray machine at UC-SF
medical school.  This was in the 1930's I believe.  They used a coil made
out of double walled copper tubing that resonated at 7Mhz.  The double
jacket allowed for water cooling inside of an evacuated enclosure. With
250kW power in, they got 1MeV X-rays.  The top of the coil was the anode, I
think.  It ran push pull with a primary coil and used two gigantic triodes.
 Those were the days!


>Original poster: "David Thomson by way of Terry
>Fritz <twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>
>Hi Malcolm,
>>Agreed about the heating caused by current, but
>the current flowing in the
>wires of an air-cored transformer can easily be in
>the tens of Amperes
>range. Depends how much energy you feed in doesn't
>it? There must be few
>Tesla Coils out there with a milliamp or less
>flowing in their windings at
>some point or another.