Joule Thief

[resonanceman]

There is a tread of the same name here.
http://www.overunity.com/index.php?topic=8892.msg235622#new

Mark

Thanks for  the link

30 pages.........looks like I have a little reading to do.

I will be posting there once I test a few ideas.

gary

[resonanceman]

Gary,
   Go to energetic and find a moderator, send him a message or post.  It usually takes around 2 weeks, lock happens when you change your profile/email.  Same thing happens here. Also try using old email? 
e

Eastov   

Same email and profile.

I did not post there much........then not for quite a while..........so I am guessing that they have a time limit on how long you can be inactive without getting  shut out.

I think I will  just stay with the   thread here.


gary

[tysb3]

Hi,
@ All
Maybe this circuit could be useful for some thing. Any one can improve this. I'm not strong in creating circuits. I was trying to feedback JT. Still it's not OU.
But I just start.

[resonanceman]

Hi,
@ All
Maybe this circuit could be useful for some thing. Any one can improve this. I'm not strong in creating circuits. I was trying to feedback JT. Still it's not OU.
But I just start.

tysb3

I am not exactly sure what you are trying to do with your circuit.
Is that 2 JTs running in series?

How much  of the  thread have you  read?

It seems to me that  all the JT circuits that may  have some OU going on  involve using  secondarys


gary

[tysb3]

Hi ,resonanceman.
Now just about strong pulse about 75V, or more. I don't  tune this enough.
Secondaries on the next.
Now I put to charge 1 ded 6V dead alkaline battery on first jt ( on "+" and "-" C1 )  and 1 ded 6V rechargeble battery on second jt ( straight on C  Q2  and "-" C1 )
I'll keep ower night and see how to change voltage on feeding 1.3V rech. battery.
I change ZD1 to 6.8V and put R2 1.3K