Joule Thief

[gadgetmall]

Here are 2 videos to see how the LED future will be,
if the prices still come down:

http://www.youtube.com/watch?v=o6RJGQvpd60

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

Very Nice Post . I have been using warm highpowered leds for some time now . they are not bluish and come in two wave lengnt . one is blinding pure white and the other is a warmer golden color . the beauty of the Jt research is that their 4 watts they are using to light them is My 4 milliwatt s to bring them to full bright !

I got a lot Of catching up on reading post . I am Busy lalely with Other things and school starts Monday . Later guys .
Peace


Gadget

[xee2]

@ yucca

Thanks for your help. With all of the information you provided, I was able to make a flyback JT circuit that works from 1.5 volts.

NOTE: test was with D cell but it also works with AAA battery.

[ResinRat2]

Here are 2 videos to see how the LED future will be,
if the prices still come down:

http://www.youtube.com/watch?v=o6RJGQvpd60

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

Stefan,

Just to let you know my experience. I purchased 11 LED bulbs that are output rated the same as a 60 watt incandescent bulb. They are posted as using only 5 watts to get this output. What I found was that they do not put out as much light as a regular 60 watt bulb. This is because they have a metal jacket around the base that is used to cool the bulb like a heat sink. This means that the total overall area of light that is given off from the bulb is much less than a regular incandescent.

If the bulb is used in an overhead light, it gives good output directly below the bulb, but on the sides it is much less illuminated.

Also, I have five of the bulbs outside, used to illuminate my overhead garage door area and the lamp post by my front sidewalk. The output is very very lame because the bulbs point upward. I still get illumination, but it is poor to see.

One other thing. When the weather gets cold and snowy in the winter the bulbs don't light up correctly. They pretty much just flash on and off in a steady rythmic pulse. Once the temperature warms up above freezing they start to work properly.

What is nice is that I am using all 11 bulbs. Going from 60 watts to 5 watts is an over 90% reduction in energy usage. Those 11 bulbs running all at once don’t even consume the energy that a single 60 watt bulb uses over the same amount of time.

That’s why I put up with the shortfalls.

Just some thoughts on what I observed. Much more improvement needs to be done and the cost certainly needs to come down.

[innovation_station]

im pretty sure ill be able to blow em up ...  lol 

i good at that ... lol

i found a WONDER FUL PEICE OF WORK ...

CHECK THIS OUT!

i just wish he knew what to do to make it better .. 

this uitalizes an idea i had a few years ago on overunity.com called magnetic gears... 

he only needs to change a few things on this unit ..  and he has a self accelerating ufo purpulsion device ...  but i see a tm ... on his logo ...  sorry no secreats .. 

but i must say amazing design ..

anyone know what happins when you wind up a gyro scope and move it by 90 deg... 

ooo  right blast off..... 

great job on your unit if you are reading this !!!

ist

http://www.youtube.com/watch?v=oCLN7e0x--c&feature=channel

[Mk1]

@all

I have found something interesting ccfl blacklight use some piezoelectric transformer , really high tech stuff anyone can get it .

http://focus.ti.com/lit/an/slyt107/slyt107.pdf

Jt , humm , some source on internet said up to 15 watt more , but really how much from 1.5 volt ..