Joule Thief

[jeanna]

@Gadgetmall,
oooo that is very good news. Thank you.

@General Jim,
(I like that. It sounds about right)
I would like to suggest that now that you know the jt circuit is connected correctly, that you remove that primary joule thief light.

Another light from a secondary will give you an output light to be using while you charge your battery-circuit
.
Here is why:
this came from yesterday's post. I repeat part of it here:

Plain jt circuit with 1 LED
4.4mA
Plain jt circuit with LED removed
1.6mA

That 1.6mA is gonna be used no matter what (sort of) but the light can run for free off (maybe a microamp or 2) the secondary if you take out the light from the "regular" joule thief place.

There was no secondary when I looked at that and it is pure joule thief.

However, you may well have another reason for keeping that particular light in your circuit. I am just making a power saver suggestion.

@slayer - and MK1 - thanks for your explanations.

awesome thread,

jeanna

[gadgetmall]

@ all

I noticed I'm a           FOUR STAR          General Ha ha, what a hoot, a nice reward lol, he he he he.
now im embarrised.

jim

haha . Hey Jim . I got the same surprise but it made feel my Age Go for broke on big Toroid . I think the more winding the less each will put out but it is so large of an area it might run different .. I pick something out of a dumpster today . Never in a Million years . Looks to be a VERY LARGE Magnetic Amplifier . It weighs 30 pounders its a monster .. welcome to the Club
Al

[Mk1]

@gadget

I got one just like it(you can see it on pictures page 126), and i unwound it all, it took  like days, At first i used it directly on the output out my transformer jt , i got about 170 volts ac, but not mush power, when i destroyed it i saw why it could not work effectively , but if you take some of the tape and paper of , you should see 2 coil on each side. there is one hidden in the plastic part, but the outs are there.

My only concern about using it it is laminate scilicon steel , i don't think it saturates . Be really go full steam!

I have been using the mag wire from it for the last 2 month .

great find !

Mark

edit I see that all the wire on your seem to get out , but you may have a special wiring inside.

[gadgetmall]

YUP,
and right below it:

http://www.youtube.com/watch?v=Ru8YQ6HUwbU

So, gadgetmall, we may not need to do a whole thread for this in the spring afterall!


Yeay! everyone is jumping into the pool!

jeanna

Hi jeanna .
Yep that is good news. iIt has been in the high 60's and low 70's all week long . Beautiful over here and i have been outside blowing stuff up with HHo . (Plastic Cup Bubblers) . What a rush! You Be careful camping up there and stay Warm I bet your taking  a Jt arnt you ? . .
Al

[gadgetmall]

@gadget

I got one just like it(you can see it on pictures page 126), and i unwound it all, it took  like day, At first i used it directly on the output out mt transformer jt , i got about 170 volts av, but not mush power, when i destroyed it i saw why it could not work effectively , but if you take some of the tape and paper of , you should see 2 coil on each side. there is one hidden in the plastic part, but the outs are there.

My only concern about using it it is laminate scilicon steel , i don't think it saturates . Be really go full steam!

I have been using the mag wire from it for the last 2 month .

great find !

Mark

edit I see that all the wire on your seem to get out , but you may have a special wiring inside.

Wow . Dont tell me that big toroid is Steel ? Jeez i know about unwinding Big toriods and i did not know that rign did not com apart . o well . It came Out of a large Pa Amp . Thats how i knew it was a Mag amp . Made for Audio power amplification .I knew i saw that ring somewhere else / DaJaVu .