Joule Thief

[Groundloop]

@WilbyInebriated,

Have you tried to remove the resistor?

If the resistor is in parallel with the coil then all it does is burn energy.

Attached is a drawing of a circuit from a Kodak camera.
As you can see the resistor is in series with the coil.

Groundloop.

[Groundloop]

@WilbyInebriated ,

Yes I have built it some years ago. And it did work. :-)

But your circuit drawing is not correct. The resistor is used
to bias the base on the transistor. Without it the oscillator stops.

Regards,
Groundloop.

[Groundloop]

@WilbyInebriated,


>> whatever. i'm aware of what the resistor is used for on your schematic. thank you captain obvious.

All I want is the correct drawing of you circuit so that I and other can replicate it. :-)

Have you checked the transformer with your Ohm meter to see how the different coils goes to the pins?

edit: Thanks, the image helps.

Groundloop.

[WilbyInebriated]

deleted

[innovation_station]

@ groundloop...   how did the 1kv caps and the reeds work out 4 ya 

ist