Joule Thief

[freepow]

  @ ALL

HAPPY NEW YEAR... EVERYBODY !

May the NEW YEAR of 2010 bring us closer to achieving success in our EXPERIMENTS,
and also some BIG breakthroughs on these forums !

[sparks]

    You can amplify the sound coming off the jt if you create a resonant cavity and listen to your jt.  You have some harmonics there at acoustical feqs. 

[crowclaw]

Crowclaw,
That sounds really weird to me.
If you electrically connect the primary to the secondary you will lose much of the advantage of the secondary.
It is magnetically connected and therefore the battery has little to do with the secondary output, but,
if you connect the secondary to the primary...
1- it might overheat the transistor, and,
2- it will take the juice out of the battery like a lead sinker. on a fishing line.

jeanna

Hi Jeanna,

Hi jeanna,

Not so... he has a JT with base and collector windings, he has also wound on a secondary  of X turns. This winding (see my drawing)  can be used as an aditional choke loading coil for the CFL and is electrically coupled to the collector. It also works
with LED's this way, you have to make sure to phase the windings of course. To ionise the UV effectively the effects of capacitive coupling, operating voltage and frequency etc all come into play. Again it's a question of experimenting... as you do.

[innovation_station]

thats nice n bright will!!

i guess i need to build the switch it !  now the SWITCH IT !  is a cross between a widget and a whats it !

the switch it !   will run on 1 jt.. a intrupted flipper and a dual output modulator !

the switch it   fills up caps  lites  leds and will  arc weld 1/2 plate steel on the spot ... lol 
    the
switch it ! 

i will soon have to build this as i just drempt it ... 

im almost done my tunner ...  i hope to finish it today! im adding the base fly back monitor plugg as well

ist!

a few pics ...  of my tuner !

now in my pic #7  the fly back from the npn or the WHATS IT ... lol  could be dumped to a SUPER CAP and go along and power the WIDGET the PNP unit... and this than could supply the SWITCH IT !

so what the heck is it !     a W WIT! 

WE BUILT THIS CITY ....  WE BUILT THIS CITY ON ROCK AND ROLL!   

STAR SHIP!

http://www.youtube.com/watch?v=TxGGckAc1rs

CHARLIE DONT YOU KNOW ? YOU NEVER COME BACK FROM COPPER HEAD ROAD!

http://www.youtube.com/watch?v=gVmU_Ql8uI0

GRAND DADDY BOUGHT IT AT AN AUCTION AT THE MASONS LODGE!

last 3 pics ... its ALL IN THE HAND SHAKE! ; ) 

[gadgetmall]

Good bye 2009 !