Yeah, there are a few nutjobs out there. Still, an open mind is what's called for here. Everything looks above board and we'll know, hopefully this time next month.
Here's the circuit and parts list:
Parts and Materials List
Alligator Clip Leads
Batteries (Rechargeable)
Bicycle Wheel Rim - Or Other Rotor Device
Coil Core (cut up copper coated welding rods)
Coil Spool
Diode (D1) - 1N4001, 1A, 50V. (may use 1N914)
Diode (D2) – 1N4007, 1A, 1000V (may use 1N5408)
Heat Sink
Hookup Wire
Grain of Wheat Bulb (optional)
Magnet Wire - Trigger wire: no smaller than AWG#26, no bigger than AWG#21.
Power wire: no smaller than AWG#23, no bigger than AWG#18.
Magnets - Ceramic grade 5 or 8; dimensions: 1" x 2" x 3/8" inches. (25mm x 50mm x 18mm)
Quantity - 16 for a 24-inch wheel.
Neon Lamp
Resistor (R1) – 100 ohms, ½ watt.
Resistor (Potentiometer)– 1K ohms, 2 watt.
Transistor - 2N3055, 100V, TO-3 case; fully metal (may use MJL21194)
Here's a link to a PDF which gives an intro the SSG
http://f1.grp.yahoofs.com/v1/4IzKT-R1l- ... 0V1.01.pdf