Joule Thief

[Groundloop]

Hi Alex . good to see you. Thank you for Showing your circuit .

To all who actually work here. If anything come of this i would never forget my friends and fellow experimenters and anyone who gave me inspiration to not only Us the actually ones who take it a step at a time with our hands but also from all the people that said it's just a blocking oscillator and no that won't work and i can't get it to work and your mod don't work  and 1000's of hours of blind experimenting ,prodding probing measuring circuits wrong ,getting humiliated and picked on picked on in a round about way .

It is Thanksgiving and don't forget who you are that i am thankful for .

Tk. You know i would get thta beer for ya . a case . Right now though me and my daughter don't even have a place to go for thanks giving dinner so we will probably cook burgers

Gadget

Hi Gadget,

Glad you are still around. The above posted circuit is the most amazing circuit I have ever tested!

Uses very little energy to light up my LED lamp. The LED lamp is not modified in any way.

I do not celebrate thanks giving, so I probably will have me a burger also. :-)

BTW: I tested the circuit on two AA batteries is series (3 VDC) and now I have a very nice night light.
I just need to solder in the 1M Ohm resistor permanently and my oscillator will start up every time I
turn on the LED lamp.

Regards,
GL.

[SkyWatcher123]

Hi folks, Hi pirate, this old saying applies well here, "don't kill the messenger".
The comments shared don't get any simpler than offered.
The reasons farmers and grocery workers do not share their products and services freely would be up to others to decide why this generally does not happen.
It is merely cause and effect.
If societal structures demand ink paper that a few others print virtually for free, then is it really a surprise that everything but the air we breathe requires some kind of payment.
Your comment pirate about communism, is the same face with a different mask.
You might be missing a wider perspective of my simple comments.
If no conditions are attached to all having their basic human needs met, then their will never, ever, be any incentive to profit from those needs or use those human needs as leverage or control to create power over others. 
Label this simple message as you may, though the truth of it will never change.
Forgive the off topic message, though it was originally a reply to gadgets twinkie post and besides, this message actually will never be off topic anywhere, it is universal wisdom.
Now back to building cool oscillators.
peace love light
tyson

[Groundloop]

Hi,

I have also tried the attached version. This version also did need the 1M Ohm resistor to start oscillating.

And I did need to increase the input voltage to 12 VDC @ 0,08 Ampere to get the same light as with my
earlier 8 VDC input. This new circuit will also run very well from a 9 Volt battery. The current usage
at 9 Volt was 0,07 Amp.

I think the attached version is not as good as the first version. The transistor heats a little bit more
and waste energy. So I will go back to the first version.

GL.

[gadgetmall]

EDIT **you got a double wammy beta gain and changed it from his npn pnp . I will try to incorporate my 1/2 micro amp npn circuit i posted using base emmiter or anyone else have at it.

thats what i mean when some one takes a circuit steps ahead it is new and they can do anything they want with  them .

China copys everything regardless if it is copywrited or patented without permission . we all know there is a knockoff of every product made . Some are so good you never know like Levy's and Nike. i bet you anything they will have My design in a nice new preformed case with a euro/us plug on it . That was going to me my next little mod . there are outlets that allow both plugs in one.

have at it before it gets buried like all the other circuits .. 

Corrected date because it is was cleaned up by someone from my notebook scrobblings .

[Groundloop]

Now that i look at your circuit it kind of look like the one I posted a few pages ago you got a double wammy beta gain and changed it from his npn pnp and the 1/2 micro amp npn circuit i posed using base emmer so there you go another original circuit.


thats what i mean when some one takes a circuit steps ahead it is new and they can do anything they want with  them .

China copys everything regardless if it is copywrited or patented without permission . we all know there is a knockoff of every product made . Some are so good you never know like Levy's and Nike. i bet you anything they will have My design in a nice new preformed case with a euro/us plug on it . That was going to me my next little mod . there are outlets that allow both plugs in one.

Gadget,

I also tried the circuit posted by LaserSaber where the collector and emitter was opposite. The circuit did self start at approx. 9 Volt
input. But the current usage did sky rocket (above 1,5 Amp.) so I had to use the current limiter on my power supply to keep the current
down. I have to conclude that the first circuit I posted did work the best.

Added 1, The circuit did self start and did oscillate regardless of the wires at the output where I did connect the base of the 2N2222.
The self start did only happen above 7,7 VDC. And I had to use the current limiter on the power supply to keep the current down.

GL.