Joule Thief

[TinselKoala]

It would be nice to have any circuit self running!

The best I've done is to make a neon JT operate from a legit wireless power receiver in place of the AAA battery. But something has to power the wireless transmitter!
http://www.youtube.com/watch?v=zYhISYeWGTo

[xee2]

It would be nice to have any circuit self running!

The best I've done is to make a neon JT operate from a legit wireless power receiver in place of the AAA battery. But something has to power the wireless transmitter!
http://www.youtube.com/watch?v=zYhISYeWGTo

Nice demo. You seem to be receiving a lot of power. It might be interesting to see how much power the receive loop is picking up. You can do this by replacing the neon circuit with a resistor (100 to 1K ohms) and measuring the RMS AC voltage produced across it. The watts received will be voltage squared divided by resistance.

[NickZ]

  TK:
  Ok, I watched your video. I remember seeing it before as well.  Nice.

   Well the only self running circuit that looks sort of like a type of JT circuit, is the one I posted previously. This one here (below). If it's for real.  As he needs to take it outside away and from everything, and not even hold it in his hand, and also show the back side of the PCB, to show that there are no hidden pre-charged caps, button cells, etz...
  But, if that device is the real thing, it's the first on our block.

  Here it is again:
http://www.overunity.com/7679/selfrunning-free-energy-devices-up-to-5-kw-from-tariel-kapanadze/dlattach/attach/128614/

  Here I'm brightly lighting a neon on an AV plug, while touching the end, and no shock in this case, either, (60 watt CFL).  Don't need a circuit to light the neon, even several inches away from the coil, just an av plug.

[TinselKoala]

Somebody asked me for the schematic for the Neon JT in the "Coupled JTs" video above, so here it is. This is also the same circuit as the 6-neon unit but that one has a variable base trimpot and a different inductor setup.

[Pirate88179]

I have found that the base trimpot, or VR, helps to maintain resonance as the input battery voltage drops over time.  Usually, my leds will still be lit pretty well but, it helps to be able to "tweak" the circuit for the latest battery voltage condition.  Again, I found this out quite by accident. (As usual)

Bill