Joule Thief

[drodenbe]

Hi again.  Here with some results of the above circuit I posted earlier.  I have been running this for over 24 hours on a crystal cell.  The cell unloaded was .785 volts.  So I guess one could say that the graph speaks for its self!  The Led is bright and the voltage continues to rise! The voltage is over the resting voltage of the cell!  I do not have any capacitor across the input.  It is just the raw crystal cell and the joule thief.  I have tried all kinds of cells.  Ni cads etc all have been similar results.  So, make one for your self and see for your self!  Thanks.

David

[drodenbe]

Well here is the latest graph!  Still going up!  LED Bright!  It now reads 1.138 volts which is higher than when I last saved the graph! 

For those who care.  Feel like I am talking to my self!  Lol!  Later.

David

[drodenbe]

Ok guys!  Here is my last post on the above circuit.  I think the graph speaks for its self.  Won't waste any more bandwidth! Later.

David 

[Pirate88179]

Well here is the latest graph!  Still going up!  LED Bright!  It now reads 1.138 volts which is higher than when I last saved the graph! 

For those who care.  Feel like I am talking to my self!  Lol!  Later.

David

David:

If you notice at the bottom of your posted photos, it shows how many folks have viewed it.  This one, at this time, says 42.  There are a lot of lurkers here that enjoy reading posts but, remain silent if they have nothing to add or have relevant questions.  This is actually a good thing as you did not have people posting "Fake!", or calling you names as sometimes happens on forums such as this one.

I think you are doing great work here and I, for one, appreciate your sharing it with us.  I look forward to see where your cell tops out at, and how long it remains there, and when/if it drops off.  Please keep us posted and do not be disappointed in the lack of posts in response to your posted work.  As you may know, I am a big JT fan and I love to see them employed in unusual ways, which I believe, you have done here.  Carry on and, the best of luck to you.

Bill

[drodenbe]

Bill.   

Thanks for your input.  Yes I have noticed that people are looking at my work.  My comment was not intended to be negative.  Not being involved with any group for a while I noticed some have dried up along with the interest.  I was just testing the waters to see if I was in a dead group so to speak and was talking to my self!  I also did not want to jump into a forum and disrupt the normal conversations between seasoned members.  So with that being said I will continue to share the results. Just in the past month I made this discovery so I am very surprised with the results.  Have spent many hours looking at the 4th and 5th digit to the right of the decimal point on my meter only to see it falling.  Usually I got some kind of a warm feeling if it got past the first hour.  But after an hour or so it went down the tubes if you know what I mean!

I just recently started to experiment again after a long rest from the same old thing.  I have always been fascinated with the JT.  I discovered the positive effects with the inductor in series with the battery and noticed the voltage was staying put so to speak which really got me going.  At the same time I was playing around with the capret and running a LED on different batteries and noticed that the led was lit for months and the battery stayed charged!  So there fore I incorporated both in the JT.  I used another jt coil configuration and as you can see connected the capret into the circuit.  So this is the results.  Blind pig finding an acorn!

I have included the final graph of the last run.  I am including a test I just started on an old crystal cell that was not very successful just to see what would happen.  The voltage of this cell was about .5 volts.  Not real good! But as you can see it is bring it out of the gutter and is charging the darn thing!  Will let run and post the results.  I have limited space, money and equipment.  Will let it run for a day or so then on to another cell.  Will show test results on regular ni cad batteries if you want.

David