Joule Thief

[innovation_station]

i used a hard drive magnet   i posted this a long time ago in the tpu threds   i cant remember when   6 months now maybe more

yep my 15 bulbs got brighter with the magnet

so guys

iv been takeing things apart as i always do .... 

i have striped down a few flybacks for the cores ...  they are perfect ...  2 parts with a tiny gap  ps dont loose the lil plastic peice in between the cores

lots of room for turns...   

i have many things im building  but agin   i cant show them all ....some are advanced to advanced for ou ...

but we will plugg away with what i can post bout

ist

my fugi's are diffrent they have small transformers ..  i will take a pic ..  they use a aaa  transistor reads c5765 2l

for whatever it is worth    it says quick charge flash 

i have not played them yet..... 

[gadgetmall]

Hi All;

Here are some pics of the fuji circuit boards I have.  I am trying to figure out how to do gadetmall's mod but realized that my boards have 6 connections on the transformer while the schematics posted earlier show only 5. 

Can anyone offer any advice on how to proceed if possible?

Thanks,
Paul

yes . JUST REPLACE the 220 ohm resistor with a 10-20k pot and short the diode. this will reduce the base bias . your 3/4 there when you do that . then just experiment with a PF cap . not UF  in different places until you hit a spot where you see the voltage get higher  then adjust your bias again .You have the correct 5 lead one . if you notice one is not soldered !! this is the exact one i have ! and the transformer is big so looks good . hook your load up to the HV hcap terminals . DO NOT READ THE VOLTAGE UNLESS YOUR METER WILL GO OVER 2000 volts ac . read it with a diode on one lead .you can use a clf to determine the voltage you desire .

[innovation_station]

want the truth .... 

the jt needs to charge hv caps .....  acomplish this ....  your more then done .... 

GADGET... can you charge a hv cap fast ?   like 2kv or 5 kv....   from a aa battery ... i do mean fast ....


if you can ...   we will proceed if not this stair must be climbed first ...  we have not touched conversion yet ..... 

i dont like going hv as there too many newbiees to get hurt from this ....   dont think it will kill you but it will hurt ....

gadget have you tryed the cfl driver ...   if you look close in the cfl you will see a properly wound jt

i took a pic...   lol

ist

[innovation_station]

@all

Interesting effect of neo on joule thief from Kubikup http://www.youtube.com/watch?v=xvJzbcv2nac&feature=channel_page , This guy should be joining us. Ok he uses 12 volts on this one but a really imaginative gentleman .

http://www.youtube.com/watch?v=9gk7pCfWOvU&feature=channel_page  .This one has scope shots .

http://www.youtube.com/watch?v=vjJ4Pk5OrDU&feature=channel_page   this one scope with neo ( it doubles the freq)

maybe he was already here ..... 

ist!

is it ok if i point the way lol 

[gadgetmall]

@ist
Hey william . I dont have many caps (Single ) that will hold more than 1500 volts . I cannot charge all them up at the same time with a jt or fugi . I do have a little cylinder power supply for an old navy night scope that will produce 50,000 volts from a 1.5 volt button cell now its neat . the little tip on it hisses and you can feel air coming off it and it smells real nice  like rain after a thunder storm in the spring time