Joule Thief

[xee2]

@ jeanna

I am sure you will not be sitting around for 2 days.

I used a NiMH AA rated at 2500mAH
The fully charged battery was able to light the light for 5 1/4 hours one way but only 4 1/2 hours 2 other ways.
The "dead" voltage as far as the fluoro light was concerned was 1.12v.

OK. I will try a test. Just for you. We will see what happens.

[innovation_station]

some body got a good jt to power this bad boy at about 30v dc with a super cap 


it should be neat

im gonna finish it off...

ist!

ideas ?   

[jeanna]

@ jeanna

OK. I will try a test. Just for you. We will see what happens.

OH excellent!
Thank you,

jeanna

[WilbyInebriated]

bill asked for details on the 'beerlight'

the bulb was from a acer? scanner. it measures 9 1/2" long or 24cm. very thin and fragile.
power supply was 3.7v dc. a cell phone battery.
the driving circuit was a royer, shown below. thanks to mikem_2au for the image.
resistors are both 120 ohm
transistors are both ztx869
c1 is 2.2nf 1000v dc polypropylene
c2 is 1.5µf 63v dc polypropylene
c3 is 100µf 6.3v electrolytic
l1 is 22µh
w1 400 turns 0.18mm
w2 4 turns .5mm
w3 4 turns .5mm
w4 3 turns .31mm
windings go on the core in the order of their respective number.

[Pirate88179]

Thanks Wilby!  Now I have some work to do to replicate this.  I hate to have an empty beer keg go to waste.

Bill