Joule Thief

[innovation_station]

here is my charger board .. 

enjoy

ist!

[Neptune01]

I would like to say thanks to Mark, Xee2, Jeanna and Jim, for all your helpful advice and feedback.

Ok, I did some changes but still have no luck. I have taken a photo of the basic circuit.

Observations:
If I connect 2 x 1,5V Batteries to the circuit the LED lights up.

Any ideas?

Thanks
Johan

PS: I know the connections to the battery are not connected on the photo. It’s because they just off screen. The batteries are now in my camera.

[stprue]

here is my charger board .. 

enjoy

ist!

Great work IST....very clean and finished look to it!

[stprue]

I would like to say thanks to Mark, Xee2, Jeanna and Jim, for all your helpful advice and feedback.

Ok, I did some changes but still have no luck. I have taken a photo of the basic circuit.

Observations:
If I connect 2 x 1,5V Batteries to the circuit the LED lights up.

Any ideas?

Thanks
Johan

PS: I know the connections to the battery are not connected on the photo. It’s because they just off screen. The batteries are now in my camera.

Hello and welcome Johan.  I would reccomend using a 500 or even 250 Ohm resister also try a different transistor like a 2222 or a 39eqivilant

Good luck!

P.S. What type of ferrite did you use?

[WilbyInebriated]

I would like to say thanks to Mark, Xee2, Jeanna and Jim, for all your helpful advice and feedback.

Ok, I did some changes but still have no luck. I have taken a photo of the basic circuit.

Observations:
If I connect 2 x 1,5V Batteries to the circuit the LED lights up.

Any ideas?

Thanks
Johan

PS: I know the connections to the battery are not connected on the photo. It’s because they just off screen. The batteries are now in my camera.

nice work, clean build.
looks like your battery polarity is backwards. the positive of the battery goes to the 2 wires, negative of battery goes to junction of transistor emitter and led cathode.

edit: your led is backwards also. the cathode(-) of the led goes to the emitter of the transistor and the anode(+) goes to the collector.