Joule Thief

[nievesoliveras]

@all

2 coil in series 122.3 volt dc , with my neon on it the voltage drops to 107.4 volts. So i got 2 times 120 volts.

I will have to buy cfl , to try it unmodified.

There is a mathematical thing called equivalency or something like that, that stated that one fraction is equivalent to another with different numbers.

It is used for many things. Lets use it to find the equivlent number of turns to get 120v.

If 4 turns bifilar with 22 turns secondary gives 72v. Then the equation to solve for 120v
would be:
22/72 = ?/120
Multiply 120 with 22 and it gives 2640
Then divide 2640 with 72 and it gives 36.67
Rounding to 37 turns

22/72v = 37/120v

So in order to get 120 volts each, you need to make the secondaries of 37 turns according to this mathematical equation.

I could be wrong though.


@general Jim

This paint composition has some of the steps you took to get success.

Jesus

@ All

Just ran across this little article where a small wind turbine is used to charge up a capacitor and power an electric toy car at
http://www.treehugger.com/files/2007/08/wind_turbine_to_1.php .

Since we can charge up caps to hundreds of volts in a small amount of time using the JT or Fuji circuits it seems to me that if a circuit like the one used in this toy car to convert the potential in the capacitor to drive a small DC motor could be used to slowly bleed off the cap back to the input side, couldn't it?  If so then the small amount of power needed to drive the JT or Fuji circuit could load many more caps if they were in parallel to the first cap, then we'd get even more energy to play with.

Anyone know of a circuit to slowly bleed off a cap at a certain voltage, say 1.5 to 12 VDC?

Anyways, just a thought.

Regards,
Paul

I like that. It is a possible feedback to the source.

Jesus

[gadgetmall]

@ All

Just ran across this little article where a small wind turbine is used to charge up a capacitor and power an electric toy car at
http://www.treehugger.com/files/2007/08/wind_turbine_to_1.php .

Since we can charge up caps to hundreds of volts in a small amount of time using the JT or Fuji circuits it seems to me that if a circuit like the one used in this toy car to convert the potential in the capacitor to drive a small DC motor could be used to slowly bleed off the cap back to the input side, couldn't it?  If so then the small amount of power needed to drive the JT or Fuji circuit could load many more caps if they were in parallel to the first cap, then we'd get even more energy to play with.

Anyone know of a circuit to slowly bleed off a cap at a certain voltage, say 1.5 to 12 VDC?

Anyways, just a thought.

Regards,
Paul

Yea thats a thought . only think comes to mind would be a voltage regulator and change the energy to mechanical  say with one of those tiny Pager Motors fitted with a N S magnet then coil it to produce the back feed rectified to the source . they run off the JT . i tried it . Also there are even more efficient motors that make the tiny pager motor look like a giant . Have you seen the tiny motors on those little helicopters you fly in the house . extremely powerful and very tiny . perfect

[innovation_station]

i built my super tiny jt with my crab eyes .. lol

they are the smallest toroides i have ever seen ..  they mesure bout 3/16 of an "  outside mesurement ....     i have not ran it yet but i will     

ill post a pic ... 

ist!

[electricme]

@all
My Big Torid seems to be working its little heart out charging up the big 1.2v Nicad battery, I noticed it was having a really hard time of it after a while, about a hour ago I grabbed a couple of heavy duty leads, and clamped Red at Pos on the big Batt, cliped red to torid.
Cliped big clamp to big batt, clipped other end to tiny AA batt neg terminal.

Well, ohhhh my, surprise surprise, the AAbatt was reading 1.10 volts, and it began to climb up to 1.25volts, QUICKLY.
The big batt began to climb up QUICKLY.

Now I don't know whats going on here, I'm tooooooooooo tired to even think about this right now, in the morning I will see whats going on here, tidy up the wires, 1 at a time, then do a TWV on this.

@ Koen1,
JT charging up batt, dont know sir koen1, dont even know if my eyes are playing tricks on me lol.

@ Jesus,
Nice work on my pics, on the one which has a reference to the BD140 transister, could you remove just (BD140) its a pnp device, not NPN. ta

@ Jeanna, where can we find a "resin rat" lol, now where can I put my hands on some iron filings, mabe a machine shop in town!

@ Mk1,
Congrats on getting all that juice out of your JT, excellent work.

@ Bill,
I found a pdf on the rodin coil, how to make it using a electric drill, nice work this, gota find a 4" crystal or make my own.

HooRoo all

GJ
 

[innovation_station]

i think it is time to ramp this up a wee bit .... 


as my investor now tells me i never showed any proof .....  lol

is it my fault he cannot grasp it .....   

no!!

so be it ....   what a waste of time ......   

give them 20 videos ....  and they say you have nothing lol!!!!!!

i say they suck ....  lol

shall we prove it !?!?!?!?!?!?!

ist!

i just so happin to have 1 of thease laying around yep a real old one