Ok guys, this originally appeared as a response to ZeroFossilFuels video on resonance (which is very enlightetning in itself, #102-108?? or something)
http://www.youtube.com/watch?v=Ru8YQ6HUwbU&watch_response
Anyways this is basically an Armstrong Oscillator or Meissner Oscillator circuit. Here's a simple diagram...
http://upload.wikimedia.org/wikipedia/en/f/fd/TICKLER.png
Can anybody provide any insight on this?? What kind of fet would be needed for a 12v circuit>?