129102 was writing about this.
This set up isnt concentrating or pulsing the mag fields generated from adding magnets to the circuit.(theres some good sites on diy mag pulsars. One mentions using an auto wrecking yard's giant magnet. Simply add a secondary field, turn on the giant car lifting electro magnet, and stand, uh, close by. )
I have used sq waves from a zapper and single and multiple concurrently running sine waves of many different freqs, from Freq generators. Running the circuit thru different crystals and using a large speaker magnet set up, to generate scalar fields.