Joule Thief

[jeanna]

So,
I just tried something.
I got a new cfl 10w 40w equivalent, and turned on yesterdays 2.5" toroid which has low winds but gets around 1030v at 2.35khz.
I placed the pos bottom nub of the bulb onto one wire end, and while touching the bulb and the other secondary wire end the bulb went fully on.
un-modified bulb.
The color was creamy white which means it was bright.

Then I touched the secondary  end in my hand  to the screw (-) part of the bulb and the light went out.
??
It is closing the loop in the secondary circuit and turning it off.

When I was off camera and playing with the hairpin after posting the video, I added a copper wire across the ends and all the lights went out too!

Q?
In our house wires, What would happen electrically if you were to touch the 2 wires together?
Would it cancel itself out?
Is it 2 phase, would it add and blow up?

Anyway this light lit so I am taking baby steps toward lighting it unmodified with a hand wound toroid and a AA.

Any more help?

I will now see about adding a diode to the end of the wire.
Or, should I put it onto a croc lead and clip it to the metal window frame?

jeanna

[jeanna]

an ac cap has 1 of these on it ... 
a wing .... 

......

crystal diodes are higher resistance thus gives higher voltage ...  lower resistance gives lower volts higher ma's
...

Are you talking about air conditioning capacitors?
.....
I have some crystal looking diodes on the cfl boards I removed. Would those be the ones?

See, I am thinking the cfl has all I need to make a cfl bright with warmth...
now just to get the parts in order and hook them together...
But, maybe not.

thanks,

jeanna

[gadgetmall]

Hi everyone . Well Alex and i have all the stuff together and i am commencing the test in the SSJT thread  for the project GM AA powered Heater /cooler light /power source . Groundloop will be running the same setup so we will compare from time to time our results . I am Stoked !! . Mine is running and firing a load off right now so i am getting used to the Programmed settings and varables in volts in and outs . I have some boards for serious replicators so if ya want one come  on over to ssjt ..

gadget

[xee2]

@ Pirate88179

Jeanna:

Thanks, I tired you C-E A trick with the first transistor...no light.  That's one of the reasons I replaced the transistor.  # 2 does not light the led either and both transistors get really hot in like 3 seconds.

Yes, you are correct that I have everything hot glued and soldered in my Jeanna Light box and do not want to disturb it for a test light of the tube.

I will figure it out...hopefully.  Unless I am into a bad batch of TIP3055s?  The first one from this group worked great.

Very confusing but, I am sure the fault lies with me.

Bill

3055 transistor are hard to damage with 1.5 volts, so I think your transistors are still OK. It seems like you do not have the base resistor wired in correctly.

[xee2]

@ jeanna

These bulbs were lit with a 1 uF capacitor charged to 400 volts. This is the flash produced when the bulbs were connected acrss the charged capacitor. I do not think you should try to do this, it is very dangerous. You can use the JT to charge up a small CK05 or CK06 capacitor (I suggest you do not use anything larger than 0.1 uF, large caps charged to hundreds of volts are very dangerous) and then discharging the cap through some low voltage filament bulbs (like the Christmas tree bulbs you almost bought).