Self Running Micro TPU, with closed loop.

[EMdevices]

Fausto, there was another cirucit posted by Stefan early on in this tread,  the "jewl light" or something like that.  It uses a blocking oscillator to suck more and more power out of a dead battery and build up the voltage a little higher, but just hooking up an LED, which draws very little power after all, seems to be even better,  if we're going to use semiconductors after all.    I would just let that thing run of years, see how long it takes.

EM

[EMdevices]

Fausto, so you're saying the coils and the diode bridge make a difference?   Nice!   You could be picking up some EM fields there,  low ones too.    As in 60 Hz   from the lighting.     On an open loop of wire in my room I get 10 to 15 volts sometimes.   You might want to check into that.

EM

[plengo]

Watch this guy http://www.youtube.com/watch?v=iNeshiY4ixI&feature=related. At least I am not that craizy 

I am using real batteries he is using Rocks.

Fausto. LOL

[plengo]

@EMdevices,

cool I will search for the "jewl light" (Stefan? can you show me where maybe?).

I will also try this device at other places in and out of the house inside its cage. Lets see. But if you righ about the "jewl" thing than it may be the answer.

Fausto.

[Silvije]

it is called joule thief not jewl light 

and it is about 50% efficient, or less...