Cookies help us to bring you our services at . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
If you do not agree with storing cookies, please leave this website now. Many thanks for your understanding.
Amazon Warehouse Deals ! Now even more Deep Discounts ! Check out these great prices on slightly used or just opened once only items.I always buy my gadgets via these great Warehouse deals ! Highly recommended ! Many thanks for supporting this way.

DC2DC converter

Micro JouleThief







Magpi Magazine

Magpi Magazine Free Rasberry Pi Magazine

Battery Recondition

Battery Recondition



YT Subscribe

Gravity Machines


Magnet Secrets

Lindemann Video




  • *Total Posts: 499701
  • *Total Topics: 14717
  • *Online Today: 44
  • *Most Online: 103
(December 19, 2006, 11:27:19 PM)
  • *Users: 2
  • *Guests: 182
  • *Total: 184


Author Topic: Joule theif : try out !  (Read 24600 times)

Free Energy | searching for free energy and discussing free energy

Re: Joule theif : try out !
« Reply #30 on: May 23, 2014, 03:40:02 AM »

Offline Farmhand

  • Hero Member
  • *****
  • Posts: 1584
Re: Joule theif : try out !
« Reply #31 on: May 28, 2014, 02:42:31 PM »
Thanks guys, I went with the basic joule thief with an adjustable resistance and the diodes from ground to base.

Just for a laugh I decided to setup a galvanic cell in a small bucket and using a couple of carbon gouging rods (copper coated) for the positive and a too small piece of zinc plated steel, a bigger zinc plate would work better.

I get only 0.9 volts open circuit and powering the joule thief it works in a "burst mode" "charging two AAA's" as the shots below show. It seems to start to oscillate at about 0.4 volts or so but the joule thief draws down the voltage until it stops oscillating then the voltage builds again. The frequency of the bursts appears to be 25 Hz going by the scope and the RMS voltage shown is about the same as the open circuit voltage of the gal cell  The batteries are gaining voltage ;D

EDIT: Correction now I look at the time base and the bursts are between 1 and 2 Hz I think.

I'll add a tiny bit of magnesium sulfate to the cell.


Share this topic to your favourite Social and Bookmark site

Please SHARE this topic at: