Joule Thief

[xee2]

@ adaro2600

I'm having trouble getting even the most basic crystal oscillator to work.  I was wondering if anyone could benefit me with a circuit diagram for one ( something someone has gotten to work with a JTC ).

I would recommend this circuit from http://www.z80.info/uexosc.htm
I have used similar circuits and they always worked for me. But, I never used one with a JT. Remember to keep your leads short.

[nievesoliveras]

Jesus:

Congratulations on your circuit!  Nice going.  You worked hard on it that is for sure.

@ IST:

Very nice work also.

Bill

Thank you @pirate !

Jesus

[innovation_station]

i hooked up my unit to a big cap 12 dc 500k uf ..  it charges it fast tooo 

i will make a drawing of the circuit ..  i did the tesla 1 wire neon trick to it too

i have almost recharged all my nicads ... lol

there is the coil a neon a bridge a cap and a diode in this unit  it is wayyy off my scope in speed

it will charge a 200v 6.8 uf cap in less than 2 second and then the noeo lights neon is on the ac side of the bridge

ist

yes i did recharge 4 aaa 200mah at 6v from the big cap from a aa and my coil infact it also powered the 2 leds on the cap and the digital voltage read out and charge the cap and the 4 1.2 v batteries .. 

[electricme]

@IST

@ jim nice cartoon ...    of course it is only rocks falling out my pockets ...  this guy got no change to put in them ... not yet anyhow... 

You are more than welcome, my pleasure william.
BTW, did anyone see I drew in Stefan, (wally) he he, I did, he is hanging around if you get the drift lol

@all,
I have been over at Bills EB / EC forum for a while, and helping Wilby with another thing, wow, the Joule Thief has taken off, gotta play catch again, you know what, playing catch up is going to be a new phrase around the forums I think, well at least we all here know what it means. lol.

For those who might not know, the last 3 days, I have very dimmly lit a white LED from my "round" horozontal EB / EC setup, (I posted all those photos here how I made it way back).

I also discovered one thing else, (a KEY) using 1N4004 diodes, seems to choke the flow of the energy, when I swapped them for 1N4007 diodes, then I got success. I also discovered I had berried the EB / EC setup upside down, so I will rectify this another day, as I don't want to upset my current experiment.
It appears the 1N4007s switch much faster, so allowing more energy to pass before blocking.

It won't be long before I connect one of my Joule Thiefs up to this and see if it will work.

Excellent work everyone.

jim

[Pirate88179]

Jim:

Great job on the earth energy receiver lighting an led.  I am very confident that if you have the juice to light an led, even to less than full brightness, you can power a JT from that and then run multiple leds from your JT.

@ Jeanna:

Thank you for your tip on how to change my "Theme" here at OU.  I am now back to the blue/gray and indeed, it does load the pages much faster.  I saw you post this over on Jesus's topic.  A lot less for the computer to load and with Firefox, it is superfast.  Thanks.

Bill