Joule Thief

[stprue]

@slayer

Another great vid, my parts just came in for my first round of tests on this set-up....well the very basic starting set-up.  Hopefully tomorrow I can post a vid or at least some pics.  Again thanks for sharing.

[Mk1]

@all

I was salvaging a microwave , there is nice stuff in there , first the motor has a quite nice coil , plenty of 30 gauge mag wire , the magnetron is always a great treat for magnet lover , the AC cap is great , then there is the transformer , we had some heated discussion he and i , you see i need fat wire.

@stprue

I made i new video , i don't know if you had any chance to see it .

There it is anyway http://www.youtube.com/user/abramrk1#p/a/u/0/wS935WyumjY

[jeanna]

I have drawn down a Nicad to 1.2v with a 5 hours discharge and I am letting it rest for a minute. Next I will stick it on to the bridge for charging.
I have tested the jtc with a bridge and cap and the cap collects 45-53v in 20-30 seconds. (scope says 104v single directional spikes.)
The "snap" is much louder with a camera cap than with a 350v 22uF cap but the charge is the same.
So, same but different in a cap.
We will see what happens in a Nicad.

This is an interesting thing, too, this Nicad was an old one I found a few days ago.
It had some charge so I recharged it (well 2 of them), and put it into the world light.
I think it was down in 3 hours, so I popped the other one in and then recharged both then ran them down again.
I think 2 times each is what I did.
Today the one I used lasted 5 hours.
I wonder if just using a battery in a jtc will have some reconditioning effect.

I have only used  NiMH and I am wondering if the Nicad memory can break up when pushing a jtc.

Has anybody seen this effect on any old Nicad's?

jeanna

[sirmikey1]

Cazpro,
   Grab it with firefox or opera, and rename when saving to fix the lang.  I got it okay with opera. 

[Mk1]

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Марка