Joule Thief

[Mk1]

I have to post it here , sorry LS . You guys got to see this !

http://www.overunity.com/index.php?topic=10179.msg268864#new

Great work again Lasersaber !

Mark

[kb24]

kb24 i found this and hope it helps

thanks dasimpson.. i compare my transformer with the diagram u provide, it seem transformer was almost same wif mine, with 6turn on primary. Perhaps i can get the same diode through ordering it, but for transistor, i couldnt find it. Is there any other transistor that possibly replace it?

for checking transformer resistance,  i not sure i have done it right or not.. lol.. here is what i get.. i set the multimeter to 2k ohm.. if i have done this wrongly, please teach me.. thanks

[Mk1]

@kb24

On the picture of the coil i see 5 wire , yet you got the resistance at only 2 locations , connect one lead of the meter to one wire then check all the others wire with the other ends of the meter repeat starting from another wire , there should be at least 3 coils , so 3 resistance value , if you don't have a resistance value it usually means that both ends are not connected together , So you need to find the 3 connection that gives you resistance , also remember that one leg of the transformer can be used by 2 coil or more .

Try again !

Good luck .

Mark

[dasimpson]

thanks dasimpson.. i compare my transformer with the diagram u provide, it seem transformer was almost same wif mine, with 6turn on primary. Perhaps i can get the same diode through ordering it, but for transistor, i couldnt find it. Is there any other transistor that possibly replace it?

for checking transformer resistance,  i not sure i have done it right or not.. lol.. here is what i get.. i set the multimeter to 2k ohm.. if i have done this wrongly, please teach me.. thanks

for the transistor i am not sure i guess try ebay i just used what i have ok they may not be upto the job but it is someware to start as for the pin checking mk1 beat me again lol if it matches that diagram dont think you have much need to test but if you get  0. in fron of any reading normaly means you ned to drop down a setting if you get 1. means you need to move up a setting

[j037m]

for the transistor i am not sure i guess try ebay i just used what i have ok they may not be upto the job but it is someware to start as for the pin checking mk1 beat me again lol if it matches that diagram dont think you have much need to test but if you get  0. in fron of any reading normaly means you ned to drop down a setting if you get 1. means you need to move up a setting

are the fuji circuit and kodak funsaver are the same coz i think the one that kb has is a fuji transformer and the one bro dasimpson has shown is kodak transformer.. also bro kb you said you already remove the fuji transformer on the circuit board can you check if it really has a 5 pins on it coz i just buy new fuji circuit and it has same 6 pins on it when i removed it i bought it on 7 eleven store .. one of the 6 pins looks like no connection on it but it has connection..