Big Joule Theif

[redeagle]

@all:

Anyone tried to loop back the tertiary wind with a fwbr so the RE spike hits the running battery?
8:-)

A NiCd akku should be indestructible?

I've done that with my bedini. If you do it make sure that you have a cap across the primary. And no battery is indestructible. Draw it too low or hit it with too high of a voltage and poof it's gone.

[StevanC]

@all:

Anyone tried to loop back the tertiary wind with a fwbr so the RE spike hits the running battery?
8:-)

A NiCd akku should be indestructible?

[Bodkins]

Earth Ground and more

[slayer007]

Thanks for the link to the "Foxhole radio".
Wow! That takes me back in time aways. I built a crystal radio as one of my first electronics projects a long long time ago. A "cat's whisker" radio--I still remember it.. My grandmother used one at her bed at night to listen to talk radio shows before she went to sleep eack night. She liked it because it never had a dead battery and it always worked. I don't think that one would gather enough energy to run a joule thief though. I went to Ebay to see if you could still buy one and stumbled upon this guy that sell the razor blade part of the "foxhole" design. Scroll down the page and you will see the simple circuit for the radio. Notice the "Earth ground". Hummmm. What is old is new again???

Gillette Blue Blade Crystal Radio Detector Kit - eBay (item 310120243506 end time Mar-04-09 20:45:32 PST)

Lidmotor

Thanks Lidmotor

It still looks like a fun project to try.
I wound a coil all ready I just have to run out and buy some razors.
I seen some where were you have to burn them first with a torch to get it to work all so.

I tried it with a blade from a box cuter but it didn't work.
I think it was to thick of a blade.

[Lidmotor]

Foxhole radio

I was thinking about making a fox hole radio.
And replace the head set with a rectifier and see if I could get enought voltage to run a JT.

Here is a link that shows how to build one.

Foxhole radio - Bizarre Labs

Thanks for the link to the "Foxhole radio".
Wow! That takes me back in time aways. I built a crystal radio as one of my first electronics projects a long long time ago. A "cat's whisker" radio--I still remember it.. My grandmother used one at her bed at night to listen to talk radio shows before she went to sleep eack night. She liked it because it never had a dead battery and it always worked. I don't think that one would gather enough energy to run a joule thief though. I went to Ebay to see if you could still buy one and stumbled upon this guy that sell the razor blade part of the "foxhole" design. Scroll down the page and you will see the simple circuit for the radio. Notice the "Earth ground". Hummmm. What is old is new again???

Gillette Blue Blade Crystal Radio Detector Kit - eBay (item 310120243506 end time Mar-04-09 20:45:32 PST)

Lidmotor

[StevanC]

newbie on track

I did make an lousy JT off a toroid I salvaged from a dead PC PSU...

I didn't realize the internals and difference among the JT and Bedini's Solid state energizer ("SSG") back then...

It was only after I found out that the JT starts with the BJT shorted ("ON state") instead of the Bedini's SSE that depends on the initial spike or will just 'lay around dead' for it starts with the BJT wide open ("OFF state") and depends on the initial inductive 'sparkie' (hard switch vs. slow rise)

Once that was clear, the JT could "come to life" :-)

So my both off spec toroids are NOW working:

1. I blew a bunch of diodes the fist day off one 1.2 and two in serises NiCd akkus :-(

2. I almost lit a flash bulb (cam-flash kind of bulb) - was all bluish - killed the TIP31C too ...

3. I ended up with my (only left) 2x green LED in series over that 2N2222 and the 'backend' winding (120 turns approx) free

And i tried:

I hooked up a 200V330uF capacitor off a 1N4007 diode

4. it charged up to about 8V and more depending on the powering cell

I picked a SCR (BT151 was at hand: TO-220 case) and made him triggered by a LED (an red LED) and put the 'middle leg' on the positive of the capacitor and then let the lateral leg (which would be a 'emitter' if we consider a transitor) to some load...
It just so happens that I can connect it back to the powering battery... as they can share the common negative (the backend is 'floating' anyway)

So I connect back,
5. The capacitor 'hangs' about 3.8V now (2.4V across the SCR) as the battery slowly declines from 1.31V down to 0.7 where the LEDs stop to shine...

there is place for improvement:

A. a FWBR of shottky diodes: A FWBR introduces 2x Diode forward volt-drop, so shottky keep it about 0.4...0.6V
B. All white LEDs for both 2N2222 and the trigger (would rise the capacitor up to 4.2 or so...)
C. how do i introduce a permanent magnet to a toroid?

interesting?

[slayer007]

I was thinking about making a fox hole radio.
And replace the head set with a rectifier and see if I could get enought voltage to run a JT.

Here is a link that shows how to build one.

Foxhole radio - Bizarre Labs

[Lidmotor]

Gray Tube on the Joule Thief

@ Lidmotor

Did you ever try your Gray tube with this?

Slayer-----No I havn't. But on that "Inverted JT" that I built I tried out the HV cup cap that I built to see if I could make some "purple sparks" to play with. It didn't work to good and I was over heating things so I stopped. I imagine that the Gray tube might be used here in some way. Aaron would know.

Lidmotor

[slayer007]

@ Lidmotor

Did you ever try your Gray tube with this?

[Lidmotor]

Extra energy--Free energy---It's ALL GOOD---I'll take it!!

Hello Lidmotor,
I was thinking that you could try to put your 5W solar panel behind the CFL to see if there is little power to collect
And may be making a reflective foil on the other side of the CFL to try to collect more power for the solar panel.
Congratulations for your work !
MDG

PS: 50 mA x 2 Volts = 0.1 Watt consumption ... only ! for 2 LED, and 1 CFL, and one battery charging, and now a small cap charging through the Peltier module ... add the solar panel ... You are going efficient man ! That's the less we can say

@Stephenafreter---I have tried the solar panel energy recovery on other light projects and there is some but it is a small amount. If we had "solar panel paint" in our homes then it might make sense. I read somewhere that there are experiments with phosphorescent paint that glows after the lights are turned off. I guess that is a form of energy recovery.
You are right about this circuit becoming very very efficient. There was a Volvo car commercial years ago that claimed that their car got such good gas mileage that every morning you had to siphon off the gas tank to keep it from overflowing. When the day comes when I have to put a constant load on the charge battery to keep it from over charging is the day I will stop. They already do this on solar systems. Imagine this on a "spike" charging system.

Lidmotor

[Bodkins]

Well well, this is a breath of fresh air. I knew something must be up with this thread when I saw bodkins posting :-) three cheers for electron vortices in the superfluid aether!

YouTube - Think out of the BOX Primary Phyics

I think this is what we are working with, Adding Ground Lidmotor is just adding another stressfield to feed from.
Think about it Like Trees grow in two stressfield.
And it called ETHER

[shlodo]

Hi Shlodo, I just posted this:

http://www.energeticforum.com/renewable-energy/3806-back-emf-vs-collapsing-magnetic-field-spike.html

All I have been doing is quoting the facts in regards to this.

Well speak of the devil!

cheers Aaron, good idea to start a thread on this topic. will post when i got some spare time. your insight is greatly appreciated...

Here's a video of me recovering a completely dead battery (12v 7.2Ah) with my joule thief charger. In the video the starting voltage is shown to be around 9V. However I had been charging before I shot the clip, it actually started at 5V and would not power anything! not even LEDS. It would not accept a charge from conventional charger

Amp draw is quite high, 1A, but im not testing in Vs Out. Just seeing whether it can recover an unrecoverable battery

YouTube - Joule Thief Charger Recovers Dead Battery 04

I have a dead motorbike battery sitting around, cant wait to strike the thing with some radiant and see what happens!

-shlodo

[Aaron]

back emf vs. spike

The BEMF will never be higher than the forward EMF. its the collapsing field that causes a radiant spike. If u see a huge voltage spike for a split second then that is the "radiant spike".

Hi Shlodo, I just posted this:

http://www.energeticforum.com/renewable-energy/3806-back-emf-vs-collapsing-magnetic-field-spike.html

All I have been doing is quoting the facts in regards to this.

[Inquorate]

Om shakti shakti shakti om

Well well, this is a breath of fresh air. I knew something must be up with this thread when I saw bodkins posting :-) three cheers for electron vortices in the superfluid aether!

[sucahyo]

On my JT it does not draw more with the bridge. In fact when the battery is connected Amp draw decreases.

That is very interesting. I never experience that!