Joule Thief

[electricme]

@Xee2
Thankyou for your kind remarks ie my big torid, TA, you are right, in high quality amplifiers, if you substitute a torid for a iron laminated transformer, there is much less distorsion. A iron transformer rediates EME, if you place another iron transformer on top of a working transformer, then you will be able to measure voltage in the second transformer. The magnetic lines of flux can jump into it.

The Torid transformer contains its magnetic flux, so it is also more efficient.


jim

[electricme]

@all
A CRY FOR HELP

I have two more pages of posts to catch up on so I will read them after posting this.

Right oh, I need a bit of help from the gurus who know about torids, weather a forum member or not.
I posted several pages back I need to see a video of what occurs inside a torid when it is working, I want to understand how this thing operates.

Can anyone reading this point me to the web address that explains it, in a simple way?

jim

[xee2]

@ electricme 

This gives a lot of information about toroids:

@All
   Very Very Interesting PDF on Magnetic Core Characteristics 
http://focus.ti.com/lit/ml/slup124/slup124.pdf

[innovation_station]

a few scope shots...

ist

lol

how can i get sine from square  lol     

[innovation_station]

can i buy 2 letters .....  lol

P AND N

vanna can you turn the letters over please .....


X X X  & X X X NPN &  PNP   WHAT

lol

ist!

vanna can you tell the fine people what they have won .....