Joule Thief

[jeanna]

AH I see.

Thank you MrMag, that helps.

jeanna

[dog812]

Finally i got some meter'd results for you.. thanks to Jeanna

Ok I made this schematic.With my mod of taking out the resistor. And only 6 paired winds on the torrid cuz that is all that would fit with 26 awg wire.
http://www.postimage.org/image.php?v=gx1fn9VA

Then i put 15 White LED's on and used a 68 OHM resistor for the reading. As you can see it says .9 Volts / 68 Ohm resistance = 13.2 Milliamp draw.
http://www.postimage.org/image.php?v=gx1fn7qr

[TheNOP]

@Artic_Knight
what is "wierd" about Tesla pancake coil ?

it have some properties but that is not wierd at all.
this coil is a capacitor, resistor and inductor all in one.
this coil also use its capacitance to cancel out its inductance.


if i remember right, at resonnant frequency the current will only be affected by the coil's resistance.



edited
MrMag opened my eyes about jadaro measurements. 

[jeanna]

Hi everyone,
I got some extra volts today. 9volts picked up and caught in a cap while 4 lights were blazing. (really blazing)

I took a pic and labeled the parts so you can see it.
The first tier toroid is called "MK.4" because it is less than half of a real MK1
The second tier toroid is the "XTree".

I have the list of volts and amps here in the text, though. I erased the components from the background and I don't know if it will be easier to see with big white splotches or harder.

Amps draw
38.9mAmp = First tier alone with bjt led
42.6mA      = Both Tiers with bjt led in first tier and 4 leds in 2 spots in second tier.
45.8mA      = Both Tiers with just 4 leds in 2 spots in second tier.

I got a wide range of voltage differences between the same set of places I have been finding them and they are high in all the same places and low too.
This time the high looked high enough to see what a capacitor would capture from the highest spot.
The 2 wires that display the greatest voltage difference are

1- from the "orphan" which is turning on the row of 3 lights. You can see them on the left. (I call them secondary, but that is the wrong term)
2- to the negative battery rail.

the scope reads the waves as 11.5 at 12kHz but the capacitor was able to collect

9volts

Here is the pic. You can see how bright the lights are. there are bright reflections off the cup and the diode wire.

Reminder:
the orphan is the green lead (with the yellow clip) from the second tier joule thief whose transistor and resistor were removed.
This left that lead without function.

But it was putting one of the secondary wires from that upper joule thief into the neg. battery rail that made all the lights go very bright.

jeanna

[Thaelin]

   If willy is so upset at having a post deleted, he should look at my posts
in Dr. Stifllers thread. Like most of them get the ax.    Seems I worded
a post wrong and he took it bad and wouldn't consider anything else from
then on. Its not the end of the forum for sure. You just have to brush it off
and continue.

thaelin