Joule Thief

[altrez]

Altrez,

I got mine at allelectronics.
It is a tor-60,  $3.50 each
http://www.allelectronics.com/make-a-store/item/TOR-60/3.38-DIAMETER-FERRITE-TOROID/1.html
this is 3 .38 inches in diameter.

That will be great for you to get one of these!

jeanna

I will order one

Take care

-Altrez

[TheNOP]

What I exactly meant can be found on the wiring schematic as part of Reply #7310 on this topic thread Page 732, first post at the top of the page.

The recovery method was what I patterned my circuit drawings from.
My next question is:
Can any number of either my drawings or something similar to the schematic on Reply #7310 be added to the circuit there without being affected by Lenz' Law limitations?

like i said, i do not know how and if cemf can be lowered with diode(s) and cap(s).

one note tho.
Lenz's law is base on Faraday's law of electromagnetic induction.

Lenz's law:
"An induced current is always in such a direction as to oppose the motion or change causing it"
is simply a re-hash of Faraday's law, but it add the notion of movement to it.
ex: magnet and/or coil moving in space.

technicaly, in the jt case, we should talk about Faraday's law of electromagnetic induction not Lenz's law.
because in a jt/transformer coil the movement of the mag fields are just relative.

[TheNOP]

@ TheNOP

Not at DC. The only way this type of coil will double the voltage is if the input is either AC or very short duration pulsed DC (which has a lot of AC components in it).

true
the "double energy" claim is not true unless the energy they are talking about is actualy voltage and AC is applied.
in that case, the coil would be an auto-transformer with a 1:2 ratio

but there test call for the use of DC...

in general, what they are showing is right.
to me, the doubling claim is for the capacitance tho.
as it is what bifilars do at the detriment of the inductance.

it is what they seem to be implying about the field strenght that does not fit with my experiments results.

[innovation_station]

VERRY NICE WORK EVERYONE ... 

A WONDERFUL JOB DONE HERE ....

CONGRATS TO YOU ALL!!

MK1 YOU HAVE AN AWESOME DESIGN THERE YOUR PLAYING WITH ...

ILL DROP A FEW WORDS .. IF I MAY ..

YOU NOW HAVE A TURBINE GENERATOR IN 1 DIRRECTION    YOU GOT IT CHASEING ITS TAIL IN HIGH SPEED IN MAGNETIC FORM ..

GREAT JOB ...!!

IST... 

[the_big_m_in_ok]

TheNOP said:

like i said, i do not know how and if cemf can be lowered with diode(s) and cap(s).

>>I did have another look at the schematic in question.  L3 is broadly parallel with both sides of the bifilar JT transformer.  And, I finally      noticed the diodes are backwards to block current flow to the positive plates of the caps.
Never saw that before.  It's so new to me that I don't know what effect it'll have on the rest of the circuit.

--Lee