Joule Thief

[xee2]

@ jeanna

What is with that?

Maybe you are shorting out the turns. If you have a real good ohm meter you can measure the ohms in 12 feet (or however much you used) of wire and then measure the ohms in your coil. If the coil is less it is shorted. It is not real hard to short through the enamel coating (I prefer using plastic coated wires for that reason).

[gadgetmall]

AARGH!!!
AAAARRRRGGGGHHHH!!!!!!!
AAAAAAARRRRRRRGGGGGGGHHHHHHH!!!!!!!

I now have another doorstop made like the hazens coil. The first was like slayer then 3 like hazens. Will I ever learn?

I never get results when I wind the secondary all the way over and all the way back.

2 whole days!!!!

grrrr

The same work would be lighting the sky if I had done it like the MK1

What is with that?
Gadgetmall... did you ever get results?

It seems to put itself out when you go all the way over and all the way back.

grr

not happy... not smiling
jeanna

I am having the same results as you Jeanna .Worst . 10 whole volts . WOOPE !! and i wound 150 turns . man its hard not to get kinks with all that wire hanging down the hall  .. I think the wire going back is canceling the voltage kick somehow . There is a difference in cw and ccw . we proved this 489 pages ago . . I am stumped . now using 2n3055 . 10.45 volts rectified with 104 caps 1004 diodes . Bridges . nothing to write home about . . Will go for number 2 tomorrow night .. .
I am Using Good wire and have checked for shorts , Getting about 9 ohms on mine and i have even painted it with Clear Nail Polishto make sure its not shorting . Not that here <>

Hi Mark !!. I need your power !!!!! Move some over here .!!!

Gadget

[Pirate88179]

I agree with Xee2 on this.  It just takes one small place (Edit: ok maybe 2 places) of mag wire that is not insulated and....poof, a short.  Plus, consider that even if you didn't do anything to short it, there is always the possibility that when this stuff was made, probably in China, that maybe a batch or two did not get completely coated.  I would do the continuity/ohms check just to see what that tells you.  If you do have a short, you may be able to use Jim's nail polish trick once you locate it so maybe you don't have to unwind it.

Bill

[Mk1]

@all

My take on the output coil volt killing design .

First there is no real energy in the pickup coil , so it is susceptible to pulsing coil direction flow , the power can be stopped in the coil . This can help or kill the voltage.

I have not found a way to make a convincing design when the coil goes over the 360 mark. You are welcomed to try something else.

@gadget

I don't get it , you still did not get the desired output , maybe your not ready for it , stick around a bit , busy making kits , make some time for us , please . You are the resonance expert so far , i got so much stuff for you.

@electric

I did post this comment before but , it doesn't always get to port , probably my fault bad identification on the replies , yes the led drop the voltage big time , get better diode 1n4004 are god for 400 volts , you may have more then you think ! Nice multicore unit .
I have stuff for you also my friend.

@jeanna

Sorry to hear that , well it happen , what ever you can call that distraction to divine intervention is only judge by the results .

Mark   



Gadget you got a pic of your winding ? It can be some little detail , do you have other toroid like it ?
Did you test the toroid before committing to over 100 turns ?

We will get it to work !

[jeanna]

Hi everyone,

thanks for the suggestions. I don't have any shorts. 1.0 ohm resistance on 19 feet of wire.
I have about 40-50 feet still unused of telephone wire same 24 gauge as this which is showing 2 ohms resistance.

I think it is putting itself out.

In fact it is putting the PRIMARY out. It isn't oscillating at all. NO LED in bjtl will turn on even a speck.

I am just trying to think of a way to efficiently remove just some of this wire so I can rewind it like MK1. So far, I cannot.

Maybe I will toss it into the box with the other 3 that are wound this way.

Just please if you remember, remind me not to use this winding method again!!!! (I am not actually planning to need to be reminded.)

OK tomorrow is another day.

I can see about that 3 3/8 inch ferrite. I wonder how many turns it will take to get it into motion...

smiling again (rose colored lenses)  ,

jeanna