Joule Thief

[resonanceman]

I am quoting this post from Yucca over on the Kapandze topic as it may help with the flyback transformer pin ID:

                  "@Jesus,

Hope this helps you, it really helped me find the correct pins for my flyback trafo:

http://lifters.online.fr/lifters/labhvps/tht.htm

                                Quoted from Yucca"

Bill

I did  it the old  fashioned way .

I  just  did a continuity  between all the pins
I marked  which  pins   had  connections  between them

Then  I  got out my   trusty alligator  clips  and  tried  hooking  them up 

gary


Edit

All you need  for a JT is the equivelent  of  a center tapped coil .
So  if you can find  3 pins  with continuity    you should  be able to make a JT with it .

2 separate windings in the same  transformer  will work too .

[nievesoliveras]

I am quoting this post from Yucca over on the Kapandze topic as it may help with the flyback transformer pin ID:

                  "@Jesus,

Hope this helps you, it really helped me find the correct pins for my flyback trafo:

http://lifters.online.fr/lifters/labhvps/tht.htm

                                Quoted from Yucca"

Bill

Thank you @pirate !
I was just going to post that one link here and you did it first.

Jesus

[jeanna]

It is way too hot to put this newly modified jt out onto the eer. however, I am pleased to announce and thank xee2 for his suggestion that I lower the amps needed by raising the value of the base resistor.

It took 6 of these free (with the purchase of leds)  470 ohm resistors to bring the amps draw down to 36mA. I could go lower if needed. the light is still fully bright. I will stop here because the resistor chain is starting to look like Ali's bracelet. 

jeanna

[innovation_station]

awesome work everyone ...

i have always wound my coils all 1 dirrection i then pulse in that dirrection the other end is the resistored wire .. 

this is done in each and everyone of my coils... 

i have a BOX FULL OF FLYBACKS...  plus like 5 more things to take all apart yet ... 

never fired 1 up yet...  ...

congrats to your son jeanna ...  funny my mother gets married this week end lol ...  kinda a 4 week ago idea...

ideas to manifestation over night it seems....  lol

i was cashing in my scrap copper today ... now back to the rings ...  i have my little jt board almost done recovery works as showen i have 3 1.2v feeds and a 3.6 v feed i added more switches .. so i could isolate the aaa driving battery and recharge it independent of the coil

it still needs some work b4 its fully running .. but its dammmmm close i dont know what i will use for caps on the output but my little coils charge them fast ...   might use 200v 6.8 uf cuz i have tones of them and cuz i can charge them fairly fast .. plus it all depends on the coils use

if i want to switch them to drain or if i want them to self drain or spark gap them to drain agin 1 MILLION WAYS TO DO IT ....

speeking of spark gaps ...  I FOUND AN AWESOME ONE LOL AS I CURRENTLY THINK ..

I TOOK APART SOME 120V AC RELAYS .. AND THEY HAVE A COPPER ARM AND A PRESSED SILVER CONTACT .. I WILL USE A FULLER GADGE TO SET THE GAP ... I HAVE BOUT 15 0F THEASE REALAYS WICH IM SNEEKING THE COILS OUT FOR ANOTHER RINGGGGGG

SO I GOT ALL THEASE RELAY CONCTACTS LEFT OVER 

IST!

I could go lower if needed. the light is still fully bright. I will stop here because the resistor chain is starting to look like Ali's bracelet. 

you make me smile 

[resonanceman]

@ Gary:

Thank you also for your explanation of the dots.  I have never understood that until just now.  Many have explained it before and it just never sank in until I read your explanation.

Thank you.         (Also thank you to the many others that have tried to explain it before...I just didn't get it.)


Bill

Thanks Bill

Simple minds  find  simple  ways of saying things   

gary