The Eric Dollard Lightglobe experiment

[Farmhand]

OK the first thing I notice is the copper strip actually sticks to the glass of the bulb well after the power is shut off.

The second thing is that he is comparing 60 Hz 115 volts AC to many kHz and several thousand volts AC. He would need to compare the Tesla coil output to the output from a regular HF transformer at the same frequency and voltage to show a "special effect" different from regular HF HV AC.

Third thing is simply running the current past the copper strip is depriving the plate of a near equal area to be attracted to.

A good experiment would be to test if the bulb is needed to attract the copper strip, what could be tried is a piece of glass with a resistive conductor across the back side away from the copper strip as well as just a metallic plate made to have a similar resistance to keep the voltage about right across it or some other alternative load that takes away the vacuum bulb.

Fourth thing is that the charging of the capacitor from the light bulb failed (at least once) for no good reason.

Fifth thing is that the capacitor was charged a bit from the wire even though it has much less area than the bulb.

The transmission to the beach is nothing special either, nor is the wireless transmission of pulsed DC over a distance of a foot or so.

All in all I don't see anything special in  the video except the various power supplies, I would like to have those.

Here's a clip of my setup lighting a 25 watt bulb from the output coil of the "unpowered" transformer on the right while at the same time throwing a nice arc/spark from the top of the unpowered transformer back towards the top of the transformer that is powered. They are not identical as can be seen but simply tuned near the same resonant frequency. It screams because the resonant frequency is over 700 kHz. I rigged a break out point on the top of the unpowered transformer to let out the power and let more in at the input. hehe Still input is less than 600 Watts. Expensive and noisy way to light a bulb but fun to watch the sparks.

https://www.youtube.com/watch?v=ZVx1FzLFFXc

I don't have an area safe where I am permitted to use that transformer, it interferes with stuff and even destroys some electronic stuff if I use it too close to things. Otherwise I would fix the broken spark gap rotor and do some experiments.

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[pomodoro]

Nice, but yours may not act like Dollard's unless your low voltage secondary still has 30+KV on it and it is a vacuum bulb. Dollard  connected the bulb to the secondary of the driven coil, used a suspect 'loading coil', and connected the other end of the bulb  to the undriven HV coil . I suspect that this second coil is not necessary, any large conductor or earth would do instead, just like is used for single wire transmission of power. He has done nothing like Tesla did, but claims to be the only man to have replicated Tesla's work properly.

[Farmhand]

Well that wasn't a demonstration of an attempt at the Dollard experiment, just showing my transformer, it produces several hundred thousand volts at the top terminal unloaded.
If I wanted 30 + KV to do the experiment using that transformer I would need to use the second transformer to step down the HV to the desired voltage, which is just a matter of winding a different output coil for the second transformer and tuning it, then the bulb could have several thousand volts across it. But it would be safer and better to design and build transformer for the voltage desired.

As a general rule I don't follow Dollard or replicate his demonstrations.

[pomodoro]

How many volts did you wind the secondary for in that experiment?

[xee2]

OK the first thing I notice is the copper strip actually sticks to the glass of the bulb well after the power is shut off.
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I think the x-rays are pushing electrons out of the foil as a result of high energy collisions. This leaves the foil with a static positive charge. The foil sticks to objects just like a strip of paper with a static charge sticks to things.

Just my guess. I have not done the experiment.