Joule Thief

[innovation_station]

i have just enough room for some paper in between the magnet ...

it is a tiny bit slopply probally how it was suspoto be ...  knowing how things work ...  it always seems to be the case ...  just when you think you over did it ... and it was a mistake to the original intenction .. it turns out to be just perfect!! 


funny how this uni works ... 

i could tell you a storry all about my ufo controller and why the buttons as not where i originally designed them to be ....    but  its more fun if i leave it a riddle ... 

i by accident drilled the last hole of the off and on switches .... in the wrong place ...  but right after i did it ...  i realized how kool it was 

peace all !!

W

[Yucca]

@ innovation_station

I think using a magnet degrades performance, but if you are going to use one in the slot you should put some kind of insulator (electrical tape should work) on at least one side of the magnet so that you are not shorting across the gap since that would allow eddy currents to flow and defeat the advantage of having the gap.

(How is that for a run on sentenace?)

good idea, wrap the neo in tape before inserting. also because JT is DC biased core operation try both neo polarity configs.

[resonanceman]

@all

Mk

Great find   



This could  greatly amplify  what we have been getting  from  our JTs

To  explain what I think is  going on  with this circuit
I  don;t have a link , but  I saw a video  years ago  of a guy doing  some experments with some magnets and a piece of steel .

he  put  a large magnet on  the end of the iron.
he was then  able to pick  up  another piece iron on the  end of the  iron opposite  the magnet.
he then  put  a small  magnet  on the side  of  the  first piece of iron .  the  piece of iron that  he was  being  lifted  fell     
A small  magnetic field at right angles  to  a larger  magnetic field  can  block  the larger  field

If we used  a JT to power  the  small coils on each side of the magnet  we should be able to control  the  full power  of the magnets with  very little input energy


gary

[Mk1]

@all

A picture of my rodin jt ...

The twisted pair goes to positive battery rail (24 gauge bell wire), with a 12 turn 22 gauge pickup coil i get 70 volts .

[resonanceman]

@all

I included a download in this post , on multiple core transformer , really interesting ...

Thanks for the link

it answers some  questions

I played with  ideas like that a while ago ...... what  I came up with  worked kind of like  variant 4 .... it would be killed  by tapping  any of the  cores


gary