Joule Thief

[innovation_station]

so i used my old cap motor board with the 275 vac cap on it and i powered a cfl with out mods to it  the cap i used on this board is 1 uf at 275 vac

it needs to be smaller value like .1uf

i will make this ...


so it will power the cfl with out modding it  and   and light it to full brightness....

where will this go ..... 

william

[Mk1]

@ist&pirate

That is weird i got some 1n34 from radio shack even at half price, that was last November.

And the circuit form air i think is a solar deal, more than anything else,take a led(super bright red or white) connect it to your meter then let the led touch a incandescent light bulb, you should get 1.5v. 6 mirco.

I also found this interesting little trigger coil  http://www.abra-electronics.com/products/catalog/H-V-Trigger-Transformers-p-4765.html

BTW , abra and addison are my local stores , then there is active. I am so lucky, and addison is so cheap!

[Mk1]

@pirate

I circuit from air is not a ridiculous idea , but the one on the net is not working, but lest go retro.
Crystal radio , don't need batteries.But we would need to tune it but to what?lol

We need germanium diodes , core and mag wire to start! so lets go!

[innovation_station]

i have about 300 of those diodes just the single wire one ...


i made you guys a video of my un modded cfl being powered by a cam unit and a 275vac cap


NOTE**    this is polarity sencitive ...if it dont work 1 way flip the wires 

ist!!


http://www.youtube.com/watch?v=bkjN0GTlCRY

[jeanna]

Hi everyone,

I finished winding 100 turns 50 each way on my big 1 1/4" diameter high permeability toroid. I just got them to fit! I took my own advice, and used 2 pieces of green mag wire I think 26 gauge awg from RS. I was careful to sand off the ends of one before I began and at the end I twisted one of each from opposite ends together for the common wire.
This circuit is similar to the recent ones. For clarity, I am using:
Transistor 2N3904,
820r fixed resistor at base
20K VR at base || to a
100pF Cap
Across the battery is a 47uF cap to smooth it all out
yellow or white led single for this test.

The basic jt is a pretty good one, The light is very bright.
With only the fixed resistor at the base for comparison and standardization,
the light is very bright at 20 mA (this is a normal thing for 20 mA to make a bright light)

and moving the VR to 19K ohm the amps drops to
4mA and the light is still very bright. (this goes for yellow and white. remember the yellow shows a weakness in light much earlier than the white does.)
=====
I began to turn a secondary using the same (left-over) green 26 awgauge mag wire ~5 or 6 turns and the light is bright coming from the secondary. It draws
3.5mA
0.935Vrectified.

I will now pull out another 57 inches and wind a secondary potentially as long as either primary-half. and see if the amps can stay low and raise those volts.

thank you,

jeanna.