Joule Thief

[NickZ]

   I find that if the breakers are turned off, there is NO capacitive link being induced into my house wiring. I am also surrounded by power lines on two sides of my house, which are just a few yards away from my workbench, and devices....

  To further test the capacitors captret effect or the capacitor's ability to absorb external power source influences from electrostatic induction from several possible sources, the following may be worth trying:
  "There was also another version where the capacitor was used inside of coil's core to generate voltage. I think this was more interesting because there is inductive->electrostatic induction".

[hartiberlin]

TK,
well done your last videos.

Try to use a at least 50 to 100 Ohm resistor from the plus pole of the cap to the
collector of the 2N2222 transsitor.

This way with higher voltages, you can not drive a too big current through this transistor.

It seems in your last video the collector - emitter path was shorted...

Hope this helps.

Regards, Stefan.

[TinselKoala]

TK,
well done your last videos.

Try to use a at least 50 to 100 Ohm resistor from the plus pole of the cap to the
collector of the 2N2222 transsitor.

Thanks, I'll try that right away.

This way with higher voltages, you can not drive a too big current through this transistor.

It seems in your last video the collector - emitter path was shorted...

I didn't show it in the video, but I took the transistor out of its socket and put jumpers in to short across the socket's pins in all combinations. I could not reproduce the behaviour with simple shorts in place of the "failed" 2n2222.
Perhaps it needs some little resistance in there, to make the 3055 oscillate. The failed transistor might provide enough for this; but a direct short across the pins doesn't work.

Hope this helps.

Regards, Stefan.

Thanks, I'm sure it will, and I appreciate the suggestions and the extra "eyeballs" to help figure out what's going on.

[Groundloop]

Hi,

I have rebuilt my circuit from 2011 today. The circuit runs OK and I can switch between the two batteries.
I have not added the L3 coil and ultra bright LED yet, but will do that soon. Circuit drawing attached.

[EDIT1] I have now added a 200 turn 0,25mm L3 coil. The LED has a very bright output. Batteries is at approx. 1 Volt (drained).
The charge battery is slowly charging up.

GL

[sarmasio]

GL,

This is nice, I knew the switching should be ok.
Thanks so much, this was my dream, to build one
included in a small box and just turn the switch to
get more power. I do really appreciate your work,
and willingness to help others.

best regards,
sarmasio