Joule Thief

[Pirate88179]

@ IST:

Great video!  This really means something here.  The other led does not seem to know another one is lighting up at all.  This goes to what Jeanna did, (and Mark) and now Jonnydavro.  I think this is very important.  Great work.

Bill

[innovation_station]

if you notice in my last video ...


there 3 sources of out put 

my big ringggs use ALL 3 

i want a pig on the input if ya feel that 

ist!

thanks bill for all your positive support .....   and everyone WHO BELEAVES IN THE TRUTH

i guess NOW YOU SEE WHY I HAD SUCH A HARD TIME TO UP LOAD IT ....

[jeanna]

After I returned last weekend, I went through all the still existing toroids in my stash. I compared records and took a new look at some.

Now, I may have missed one but I believe there was only 1 toroid that did not display this interesting lowering of amps draw with the addition of the secondary driven led.

In fact, most of them lower the amps draw a small but repeatable bit when you add a led in the bjt light place. Not much, but always the same for the toroid.

So, the one that is different has a lot more bjt winds. It has 14 bjt winds and it had 132 secondary all but a few going in one direction around the toroid from beginning to end. ... . It is possible that if I had just made the secondary turn back to the beginning place, the results would be more like the rest of them. I won't be doing this though. Anyone who wants to try, be my guest...

This does bring up an important point, and for those just starting out making jt's let me explain.

When you wind the secondary it really helps a lot to start where the wire that goes to the common is (this is the twisted beginning/end one) and progress away from that point and return (probably) starting about half way along the length of your secondary.

MK1 incorporates this in his directions and I have always used this method since I made my first MK1. (except for this one I took down today). I was reminded of its importance.  I made a pretty bad copy of the toroid slayer made with 8 layers or something... I didn't make 8 layers, but when the results looked bad, I pulled some of the secondary off and rewound it back in the direction of the starting place and the results improved.
EDIT... I just found that toroid in my notebook. It turns out this one that is no good IS the one I made in a lousy copy of slayers toroid.

So, for what it is worth, I recommend winding all your secondaries in 2 directions.

thank you,

jeanna

EDIT. That is a very good video ist. Thank you.

[innovation_station]

i whipped up a quick IST MK GARAGE POWER STATION UNIT ......

GOT THE DOW .....   WE GOT THE TIME .... 


ISTEAM!!

[jeanna]

That's purrty ist.

Is it going to have just the one side?
And whose job is it  to sort through those wires! 

What do you get from this one for results?? ??

thank you,

jeanna