poynt99 thanks for doing the simulation.  It's encouraging to see it give similar results.  Now that you have it up and running you can tweak it and optimize it.  I might try and simulate the same thing when I get some time.  I'm in the process of moving and won't be experimenting for a while...
EM

Nice work Poynt

Can you remove the tuned parasitic coil L3, C1  to see what effect this has on the simulation. Can you eliminate this and just peak up the output coil with a variable cap?

Also be interesting to try a "tuned plate, tuned grid" approach (from tubes, United States Patent 3747013) and see if there are efficiency improvements. Basically, tune C3 and C5 to apply to this transistor circuit.

I'll try this with my breadboard.

Curious......V

@EM

I think the trannie was 2N2222A. Anyway, an interesting feature is that this trannie will act as a resonating negistor. (not OU, but a negistor, in that it draws less current with the higher voltage applied to the circuit.) I think I cam across it at JLNLabs (Naudin) website. I remember GK has a link on every post of his.

My thinking is this.... Say Poynts model is correct. So what? For the first section of the cycle, it IS OU. What you need to do, is pulse the overall circuit, with the time ranges of the pulses to HOLD it within the OU range. Pulsing the resonator, so to speak.

My thought is that the negistor circuit will provide both necessary voltage (gain with just one tranny, and you can link them in series for higher voltage with the same DC input voltage) and timing all in one tiny circuit (3 minimum components total). If you are interested, and it is not from JLN Labs, let me know and I will find it again (at that point anywhere from B. Beatty's site, to Rex or Bearden's...... but I think it was JLN).

Also, I have come across another SIMPLE OU device... 4 diodes, 4 caps, 100 feet of wire, that looks interesting. The problem is it only puts out microwatts of power... But hey, maybe it can be expanded upon to increase power! I will provide a link if anyone's interested.   

Paul Andrulis

Hi EM,
any news on your circuit ?
Any new measurements ?

Many thanks.

@all

here's the link:

http://www.youtube.com/watch?v=BiIkeFXqRos

Paul Andrulis

thanks for the links paul,

I've moved to an area surrounded by mountains, and hopefully plentiful in naturally occurring electromagnetic fluctuations that I can tap with a well designed loop antenna and doubly balanced mixer combination to reach those low frequencies, IF THEY EXIST 

I'll be experimenting and playing with electronics soon enough, I haven't given up on this exciting area of research.

EM