Joule Thief

[TheNOP]

@electricme
i was not saying that you were wrong.
it is the proper way to "balance" multiple transistors in parallel.

my point is that by adding resistor you are also limiting inrush current.


@Mk1
how many paper clips could you hang one below the other for each electro magnet ?

to me, same number of turns, same current = same mag field strenght.
but you insistance kinda make me begin to doubt at myself.

[Mk1]

@nop

I don't know why it works but i got a feeling that having both sides of the coil about the same power makes for a greater field , not one week and other strong , if you take a magnet and kill one side all you are left with is a piece of metal , both sides are important. So to conclude the field stronger because its equal on both side, but technically weaker on one end and stronger on the other then regular , balance , ying yang

I did not lift any paper clip i don't have any !

@Jeanna

Not yet , but i will , i started working a bit , so i could keep this up , maybe find a scope and a way to get some super caps .

Also by now i know why i first i was thinking that the freq was going up when the base resistance was going down ! The sound is confusing it going higher with lower freq.

Mark

Edit i am also finishing testing this baby! Quick peek !
Its all in the coil design. Then i will reverse the winding directing at midway.

[jeanna]

The sound is confusing it going higher with lower freq

YES!
Isn't that the oddest thing?
But it is definitely true.

Thanks for the confirmation on that too. I don't know how that can be, but it is.

jeanna

[electricme]

@TheNOP,
Thank you, I accept this.
For what it is worth, I think everyone is a little bit toe-ie at the moment.

@electricme
i was not saying that you were wrong.
it is the proper way to "balance" multiple transistors in parallel.

my point is that by adding resistor you are also limiting inrush current.

This is very true, but it is so small that it probably wouldn't matter, wouldn't it be wonderful if every transistor had identical specs!

@all
I found a site which is looking into Schumann Waves, I was looking for a way to record telleric and Magnetic earth currents, their timings/rotations/field strengths etc and came across this site.

Now, I wonder if anyone has ever tried to make a toroid (induction coil) as big as this BIG HUGE iron filled instrument. No it is not a toroid, but then again it sure could be turned into one he he. It has 9.? Kilograms of fine copper wire, sounds to me he wound the whole gigantic spool onto it.

http://www.mitedu.freeserve.co.uk/Circuits/Power/1230psu.htm
 
@Bill,
If you gotta head for a foxhole, don't forget your JT light

jim

[WilbyInebriated]

the only way i know around it is coil's configuration.

you have a coil configuration that gets around lenz's law?