Joule Thief

[jadaro2600]

I'm having an simple issue with this circuit - why is it that electricity flows through the LED's rather than just going through the collector - emitter path?  This is the only part of this circuit that doesn't make any sense to me.

[innovation_station]

Even though the meter is brand new and also the batteries in it are new, I did change them out to make sure. About 10 minutes ago I disconnected the circuit from the battery and in about 120 seconds, the battery voltage went from 0.417v to 0.758v and stabilized then I hooked it back up and in about another 120 seconds it was down to 0.425v slowely crawling down to 0.420v over the next 120 seconds and now its back to 0.417v. This sure is some weird reactions. The battery is a Rayovac 1.5v AA, standard Alkaline. I'm going to let it run all night, take some measurements, then maybe I'll disconnect it and let the battery rest while I'm at work and see what happens.

I want to replicate it, but I don't have another identical toroid, I might try a larger and a smaller with the same wind and wire and compare the results.

I'm waiting on some components to try out the latest Gadget/Mk/Jeana/Fusion circuit, so right now I'm trying to learn as much as I can.

If anyone can explain how I can pick components (transistor/wind/etc..) to get the desired frequency, that would be great. My ideal circuit would oscilate at a frequency that the eye sees as a constant light, but has a high light output with a short duty to be as efficient as possible.

congrats!!!!!!!

i can not waite till you figure out the osolation 

i bet you charged your battery 

but it seams your osolation is VERRY SLOW ....   you will catch my drift when you are able to do this with a cap with a tiny charge ...

i leave it there 

agin congrats!!!!!

ist

@ jadro2600 hz lol   ever play a blue box?!?!?!?!?!

any how  if you notice  your leds will light both ways when the secondary is wound properly ....  one way is standard induction transformer action ....  and the other way i can light all leds/neons....  with out effect to the source ....  also this is how i extract power .... 

DO NOT USE THE SOURCE ...

TIP  IF YOU DO NOT UNDERSTAND THIS ..  BUILD THE MK2 REGULAR JT .....  DOES NOT NEED TO BE TUNED TO SEE THIS EFFECT .... 



all 6 are working now ... all putting out 90-100vdc x 24 feeds .... jts recovery are next ....  then it is just the 30 rectifiers to wire then it is done ...

[xenomorphlabs]

@hazens1:

If anyone can explain how I can pick components (transistor/wind/etc..) to get the desired frequency, that would be great. My ideal circuit would oscilate at a frequency that the eye sees as a constant light, but has a high light output with a short duty to be as efficient as possible.

You might wanna inspire yourself with this new find by Lidmotor/Kubikop:
http://www.youtube.com/watch?v=jvRNuz9zx5U

@ IST:

then it is just the 30 rectifiers to wire then it is done ...

That sounds so nicely insane , "JUST" 30 rectifiers hehe
I am very curious what output that will give you, i smell high amps already...

[electricme]

@jadaro2600,
Sorry to hear you arn't not feeling too well just now.

You are doing very well so far with the JT topic.
Keep you chin up mate.

Hope you get better soon.


@all
this thread is in arm chair rocking mode at hi speed lol

I had a win over the weekend, I scored a 48v dc UPS for $5 ausie, pulled it apart, water came out, it had a dead earth worm in it.
Stripped it down, washed everything in sudsy water, 4 x 12v gell cells were swollen and cracked. Pitch them. Put on verrandah 4, 3 days to dri out electronics.

Got in touch with MediTech in Toowoomba, they gave me 4 x 12v Mobile gopha chair batteries that had been recicled for free, pluss the manager gave me an extra one, it had a dint on its corner.

Assemble it all, and turn on.
No splat, and it works OK.


I bought 2 LED chaser circuit Kits and 3 New Multimeters as well.
Somehow I have missplaced my best multimeter DMM,
Bought a number of trasnsisters and a set of 400 mm long screwdrivers.
Oh yes, almost forgot, got a couple of those 1Farad batt caps to fool around with.


General Jim

[innovation_station]

btw did i mention i can lite neons from a dead aa battery with thease coils...  5 turn primary 14 turn secondary

just thought i would remind you 

ist!