Original poster: "resonance" <resonance@xxxxxxxxxxxx>I used our model M-150, a 7.5 kVA coil with an 8 ft long spark, to light up a 10 inch long neon tube using an identical coil as a receiver --- at a distance of 4,600 feet.
We started out in the driveway, and I was surprised that at the end of the driveway it was still igniting. I loaded it in a truck and drove down the road east until it extinguished. Near 3/4 mile range using coil with identical tuning.
Dr. Resonance
We used a hoop receiver with an NE2 across the spark gap to demonstrate the reception of electrical energy propagated by means of electromagnetic radiation. Being a Hertz type transmitter, the average RF power must have been in the milliwatts.A diminutive incandescent lamp was connected to the secondary of a Tesla receiving transformer to demonstrate the reception of electrical energy propagated by conduction between the two ground terminals and displacement current between the two elevated terminals. No new physics are needed to explain how this works.The TC RF transmitter was not properly tuned up because I ran out of time. The power supply was two 6V lantern batteries connected in series; the current was not measured. The operating frequency of the Wardenclyffe transmitter model is somewhere around 218 kHz.I assume by "usual RF" you mean electromagnetic radiation in distinction from RF currents flowing through a transmission line. As for demonstrating that the transmission of electrical energy between 1) a radio transmitter and receiver, and 2) a Tesla coil RF transmitter and Tesla receiving transformer is by two distinctly different means, this should be easily done, either mathematically or through experiment. Why don't Ed, Matt and you all try it?There is no question that RF can illuminate lamps at modest distances. Can be done next to any transmitter, the higher power the better. It is a deal more difficult to demonstrate, and may be impossible, that any given demo is some 'special Tesla effect' distinct from usual RF. best dwp
