I don't think you are missing anything Jesus.  It's just a music video. 

Hello, my low power joulethief lights 20xLED's dim, at total current draw of only  0.21 mA, powered by
        1x AA @ 1.405v

        or 1x LED lit fairly good at same draw current  0.21 mA

        If I change toroid and resistance, I can light 1x LED fairly good at only  0.11 mA

i have gone back to my very first jt this was 20 turns bifilar with 35 AWG mag wire 1k resistor with a 5mm super bright white led

i found the 2n3904 would not start at 0.35v but it jump started it did work but the light wasent ethern enogth to read a book with

but when i tried the bc337-25 it started at 0.35v ok it uses more current but in doing so the led was 2 to 3 times brighter then when using the 2n3904

i am going to try other transistors also to see what they results are this will be as and when i get them as they will be salvage and see how they perform what i really would like is a transistor that turns on at very low voltage uses very little current but light the led very bright

To dasimpson, Hello from freepow, Australia, I too would like to turn on the transistor at very low voltage, but also with the low current draw that I have got so far !

With a rechargeable AA @ 3000 mA, you could light 1x Led @ .1 mA(not real bright), that would give 30,000 hours of light.

But I will be using supercaps,

I can with a simple Earth battery which is really a Earth energy receiver (EER), power a simple joulethief+LED

I am looking to fine tune my joulethief as much as I can

Quote from: freepow on January 06, 2011, 04:32:18 AM
To dasimpson, Hello from freepow, Australia, I too would like to turn on the transistor at very low voltage, but also with the low current draw that I have got so far !

With a rechargeable AA @ 3000 mA, you could light 1x Led @ .1 mA(not real bright), that would give 30,000 hours of light.

But I will be using supercaps,

I can with a simple Earth battery which is really a Earth energy receiver (EER), power a simple joulethief+LED

I am looking to fine tune my joulethief as much as I can

the problem is with using rechargeable betterys is there self dishcharge rate
im loking into super caps but i needed to ask somthing 10f is 10 ampera ?
if so dose this make the cap 10000mah
earth battery id love to make but have very little garden and open to a main road were it may get messed with so earth batterys are on hold to i build a raised bed in my back yard
the only thing i could use the super caps with at moment are solar panels from garden lights