Joule Thief

[NickZ]

  Masterplaster:
  I wish that I could remember more about Otto's circuits, but at the time everything was still at the experimental stage, and given to changes.
  Otto did mention that he thought the TPU or at least his version of it, worked as a type of semiconductor at room temps. He kept repeating the advantage of tinned copper wire and also copper oxide , as the different coil frequencies needed to run both inside as well on the surface of the wires.
  When I shared my views concerning the vortex aspect of the coils function, he did not really agree,  I'm still thinking about that one...
  Although he shared his knowledge, he may not have shown all his cards, as he was careful in both what he said, as also what he didn't say.  I wish that I had had more time to know him better.  Most of his ideas are is still in the various posts and PMs, and letters, that are still floating around.       Would be nice to post his YouTube video, I think that he may have only made one, I can't remember.
   I know this is all off topic, but at the same time it may be  related to our future ventures with the more and more complex versions of the Joule Thief.
                                                        NZ
                   

[Pirate88179]

Nick:

The link you posted above for the large toroids is not working correctly.  Just wanted to let you know.  I tried going to the address without the link and it still said "no page found."

Bill

[NickZ]

  Thanks Bill, yes I noticed that.  I'll try to send the link a little different this time:
        http://www.mag-inc.com/products/ferrite-cores/ferrite-toroids
   I just tried the one above and it worked. If it doesn't, it can be removed.

[freepow]

@ If anyone's interested !!!




Here is photo's of my   "Solar powered  JT power supply box"

Box contains only 1x JT lighting the "Main Bedroom" at the moment, I will be adding more
JT's in the box with 400Fcaps, when I can afford it.

With these 2x meters, I can monitor the Solar Panel output or just switch on Charge switch and
I can monitor the 1st Jt with 400F Cap and watch it charge up by the volt meter, when the Cap
reaches about... 2.2 to 2.4v, on volt meter, I can then switch off Charge switch to the 1st Jt.
It only takes around 5-8 minutes to charge Cap up, then run Main BR light at night for about
2 hours, of course if I want it very bright it will be less than 2 hours or not as bright it will then last
much longer than 2 hours, I have a small variable resistor in Jt.

Photo 1 = I can put the switch into volts position, and monitor "Solar Panel" output,
               or to the Amps position which will give me output in Amps.
               
Photo 2 = Full side view of box.

Photo 4 = Full front view of box, with "2x meters" and "Solar charge switch" for 400F cap.
               And small switch for "Main bedroom" light.

Photo 5 = Inside look of box, there is room for 3x Jt's  across top and 3x Jt's across bottom.

Photo 6,7 = Close up view of Jt with 400F cap.

Photo 8,9 = LED bulb mounted on ceiling beam, lit with Jt in box, however I took this photo
                  when power in Cap was fairly low at about 1.2 to 1.4v, much brighter at 2+ volts.

Photo 10,11 = Close up view of "volt meter" showing Cap voltage.

Photo 12 = Close up view of side of box switch.

Photo 14,15 = Close up view of front box with top switch "OFF / CHARGE"
                      and small switch "OFF / MAIN BR"

Photo 16,18 = Close up view of left side of box with "MAIN BR" next to screw terminal that has
                      twin wire going to ceiling light.

[Bizzy]

http://parts.digikey.com/1/parts/1481978-ferrite-toroid-102mm-od-b64290a0084x830.html

Bill

Good Morning
Bill,
Ok great, this will work out well.
Thanks
Bizzy