The secondary coil used in this movie had 1400 turns of 0.5 mm PEI-coated wire, with an inner diameter of 40 mm and a height of 700 mm. For 8 turns of soft-copper primary coil, that would give a voltage amplification of 1400/8 = 175. At 25 volts input DC, it would give an output voltage of 4.4 kV.

Larger secondary coils of diameter 60 mm would give more voltage and power. Bifilar secondary coils, where the two “in” wires are joined to one another, and likewise the two “out” wires, would double the resonance frequency from 400-500 to 800-1000 kHz.

If you wish to use only 2 of these MOSFETs in parallel, you can use a homemade NPN-PNP transistor “push-pull” driver at 4.5 to 5.0 volts DC, with an input resistor of 10k ohm for their joint bases. Yet for 3 or 4 more MOSFETs, a commercial MOSFET driver at 12.0 volts works much better.

No one should even try to do this physics-teaching experiment, unless they are competent and knowledgeable concerning the potential dangers of high-voltage electricity.

WARNING: Don't touch the metal when you are testing wireless electricity circuits at 5 amps!

see [ Ссылка ]...). No doubt as to whether those space-traveler's are good electrical engineers!

Dr. Horace R. Drew owns full copyright of this video and all scientific studies.

свернуть