Joule Thief

[Pirate88179]

@ Flathunter:

I don't believe you mentioned what type of connections you are using....bread board or soldered.  You say you replaced the transistors so, that's good but I would check all of your other connections as well.  If that is not it, I would do a continuity check on the individual wires used in the coils to see if maybe one has broken somewhere along the way.  If all this checks out.....then I am at a loss as to what to do next.

Bill

[jadaro2600]

@ Ist
Thankyou for your kind remarks, if you do get to pull one of the CD drive motors apart, they are a 3 phase configuration, each phase has a 4 legered SMP ic, called a TF4, I did a web search for this thingie, couldnt find out anything on it.
Theres a mob of tiny loose balls floating inside it, must be something to do with balancing the CD at high speeds.

PS, everyone, the cartoon is for IST when he goes shopping for "STUFF" at the local electronics shop he he he.

@Gadgetmall,
Im pleased that thingie  I sent to you has turned up OK, phew, I am soooooooo releaved, lol.


THIS THREAD NEEDS A BIT OF HELP WITH INSTRUMENTS
@ ANYONE reading this post.

There are two or four forum members who have a VERY URGENT NEED of an OSCILLOPE (Not me, I got one).

So if you live in America, and IF you have an oscillope gathering dust on a shelf (its SURPLUS to your needs hint hint hint) would you please get in touch with PIRATE. (cause he is the forum leader)

Why am I asking? because there are people on this forum that could really use one in their research, and most of us cannot afford to buy
one.
Have I ever helped one of the people on this forum out without being asked? YES, I gave something to Gadgetmall, all the way from DSE in Australia, a brand spanking new instrument, still in its plastic packet.
And it made me feel real good doing this.
Did Gadgetmall ask me to do this for him.  NO, so if this Australian invallid pensioner can do this for an American, what can the Americans do for their own kind?


So come on readers, even an old frequency meter as well.
If you have other types, please feel free to send alsol.

Bill, whoooo boy ain't you going to love me he he he he.

General Jim
 

@General, love the picture!

I have a craftsman multimeter, and it has a duty cycle setting, a frequency meter, but it doesn't get any reading off of the circuit, it's most likely too high to take a reading - perhaps we could make use of some sort of frequency splitter to dumb down the thing? is there even such a thing.

And as stated below...

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.

I think this thread multi-page-jumps over night,

[jadaro2600]

@ 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 .... 

I've never phreaked before - if this is the blue box your talking about, but I am familiar with the number.

Have you a diagram for the mk2 jt?

[Mk1]

@jadaro2600

For the mk2, look a page 284 285 286.

my computer got attacked again, i connected my network on the windows side 2 min and check with spy bot and got 214 infection on my window partition, my windows is not booting anymore, this is really not normal.I have not used it in any way and it did not recognize my network card.I did make friends over here but also enemies.

Mk1

[Goat]

@ MK1

Sorry to hear you're PC is getting is getting attacked like that, this is what I recommended to a friend that used to have the same problem.

@ All

Excuse me for derailing this thread but the following information may be good for some people with the same problem.

1. Re-install the XP OS on your PC (if that's what your using) along with a Firewall and an Anti Virus before connecting to the internet.
2. Run the Firewall and an Anti Virus updates first when you connect to the internet.
3. Run the Windows OS updates.
4. Download and install Spywareguard on your PC http://www.javacoolsoftware.com/spywareguard.html and run the update tool.
5. Download and install the VMWare player from http://www.vmware.com/products/player/ .
6. Repeat steps 1 through 4 on the virtual machine.

7. COPY THE VM (Virtual machine) FILE SO YOU HAVE A BACKUP AND ONLY CONNECT TO THE INTERNET USING THE VM!

If you're ever unlucky enough to get the VM infected (which is near impossible if set on default to not write to your C: drive) you can just delete it and copy the backup image to the VM program folder and update it and then connect to the internet again and again with this VM backup copy.

Regards,
Paul