Joule Thief

[Mk1]

@kb24

Well , even if you got leds working it doesn't mean automatically that its connected properly , you said 5 leds is that all you got or all that works ?

Second , have tried to run it on a charged cap , you need i minimum of voltage in the capacitor , this is why you charge it slowly in the days time to use at night .

Now all jt are different , some use a pickup coil some don't , some consume more then others , how did you set yours ? some work on mili amps some on micro amps ?

Mark

I will answer tomorrow , now time for bed keep the faith !

[Pirate88179]

Thanks to all the positive input.. Working on it now.. Bill, may i know how much ur EB battery input to JT to light up CFL? Curious to know..

Thanks

First, I have never tried lighting a cfl from my EB...it probably could but I like the tubes and leds much better than messing with cfl's.

Second, the last time I checked it, and it has been a while, the EB was outputting just under 2 volts at about 19 mA's.  I hope this helps.

Bill

[resonanceman]

Yup, thanks for the advise.. The toroid that i have been using is the one i get from the car audio amplifier.. can it be used?

KB

Lighting a CFL requires a good sized toroid
I don't know what size your toroid is  but I imagine that most toroids out  of audio amps are pretty small........ but I could be wrong.

I am not saying that it can't be done
The transformer in the fuji has around 3000 wraps of very fine wire.
that transformer is much smaller than most toroids.
In theory it can be done.......but it would not be easy.


gary

[kb24]

Here i have my fuji circuit.. so i have remove the caps.. but get stuck with resistor.. which resistor i should remove? and how i supposed to connect those cfl to this circuit?

Its seem like my fuji circuit is different from http://josepino.com/circuits/fluorescent_light

by the way, that red and black wire is for the suis.. am i connecting it rite?

[Mk1]

@kb

I had a second look at your jt schematics , you have no resistor on it ?

You will need to be more careful about tuning your jt , try using a 1 k pot , and look into the resonant tank circuit idea by  Gadgetmall , you will need it .

I presume you have a multimeter and set the amp draw to the lowest by adjusting the resistance value to the lowest amp draw vs light .

Mark

And btw i am really not kidding , having leds work doesn't mean it is well connected , in the video i posted i assemble the circuit and show that the led will light even if the circuit is not connected properly ... I am here to help not to pass judgment or saying you did something wrong but there is more to it then meet the eye .

http://www.youtube.com/user/abramrk1#p/u/6/eiLcbTBewhw