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about things that interest me.

History of my flat spiral coil

Post about origin of my Flat wound Tesla coil

Flat spiral wound tesla coil with central pincushion termination

 History and details of this device.

This Tesla Coil was created in 1994 as the base of my first test device. A spiral of 14 gauge copper magnet wire was welded onto a deck of half inch polypropylene with over a mile of  5/32 polypropylene rod, 5 turns to the inch, for a total of 120 turns and 1200feet of wire. The insulation was tested with a HV 40,000 volt weld tester over every inch of the coil weldment, for a high”Q” coil that can withstand up to 5,000,000 volts of stress. A spiral wound coil is the Tesla design that creates the highest stress at the coil center with the perimeter at “ground” for the safest design as well as the sharpest voltage spike is at the center due to magnetic field collapse pinch. This center termination is a pincushion 8 inches in diameter with 16 pins per square inch. This is inside a polypropylene forcing cone for a plasma conduit / jet. This was circled with a capacitance / inductance necklace that served as the primary that was driven at first with a 15,000 volt, 500ma neon transformer. The bulge rings around the coil deck were the capacitors for this neckless and the some of the wiring can be seen within the right inside of the top ring.  This was setup with the plasma conduit pointed up and the driver transformer hooked up directly to the primary coil to operate the main coil in transformer mode, about 500,000 volts. All of this device was created of welded polypropylene.

During a test of overall fields with a hand held 8 foot florescent tube, a wire from the neon transformer came loose and the device went into full Tesla mode and violet plasma shot up out of the plasma conduit at least 6 feet into the air near my head. Not a big spark of lightning but a real jet 2 inches in diameter. While I was trying to figure out how to get down from the device onto the concrete floor to unplug the driver, without electrocuting myself, the loose wire came off totally and the thing went dead……………………………………………………………………………………………whew.

That event damaged the built in capacitance and I was unable to repair it successfully and continue the testing of that device.

I am now cutting away the capacitance rings and turning the coil deck over to reuse it in the new configuration.

This coil will be operated at less then 300,000 volts initially.


4 responses to “History of my flat spiral coil

  1. adolfogiurfa February 18, 2012 at 8:36 am

    So you wanted to make the famous Tesla´s “death ray”….!

  2. P.G. Sharrow February 18, 2012 at 9:28 am

    No, I know what he was describing and I don’t want to go there. Not everything that Tesla proposed was doable or needed, just possibilities. Tesla said his first proposal, when he was in school was to create a flying machine based on electricity and everything he invented afterward was just the needed parts for that project. I seem to be following that same path in I my studies and inventions. Strange! 😐 pg

  3. adolfogiurfa February 18, 2012 at 4:40 pm

    Dear P.G.: I was thinking the following: If we were capable of seeing the solar system (sun and planets) in a “blink of the eye” of say a thousand years, we would see a COIL: Each planet as the wires in your installation. It would resemble more a Ruhmkorff induction coil:
    What could it be, in such a arrangement, “gravity”?, obviously there would be a near field in the proximity of each conductor, on each wire, a static field, a “double layer” on each of these, where some of the particles around (gases) would be kept (an “atmosphere” surrounding each of these wires-kept by that static field-) and an induction field in between the coils.
    The sun, at the center, a “variable star” connected to the galaxy circuit,…(see “vibrator” in the wikipedia drawing).
    The analogy is perfect. So read carefully about that Ruhmkorff induction coil and then you will know that, first you will have to make your “ship” repel the local static field and then sail using that external field among wire windings, among “coils” (planets).
    You see I am just following theoretically the analogy, you will make it real.

  4. P.G. Sharrow February 18, 2012 at 8:23 pm

    @Aldolfo; I think you are running your time clock of the sun in the wrong direction. It already hums at high frequency and send its’ forces throughout space. Frequency on top of frequency on top of frequencies. Traveling waves creating standing waves as in the music of the spheres. Through it all is the flow of charge that is gravity. pg

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