Joule Thief

[gadgetmall]

@ Gadget:

Another great modification!  How much were those 3 led lights?  I have many dollar stores here in town and will look for some.  This is like the flashlights that you and IST have modded.  As I said to you before, I can not understand why the designers of this stuff use such inefficient circuits when building them?  OK, so maybe cost is a factor on the cheap stuff but, on the high end flashlights that cost mega bucks....they still use the same inefficient circuits and many batteries.

Great work!

Bill

1 buck . total price for modification . nada . all the parts are on other junk. battery is one that i have already recharged at least 20 times in the last several months doing longitivity test on our projects ..

I think i saw big lots  had a 4 pack with batteries for about 6 bucks !! that 12 aaa's and 12 hi bright leds
Al

[Pirate88179]

@ Gadgetmall:

Al, thanks for the info.  We have a Biglots too so I will check there first.  Hey, if they want to supply all of us with these inexpensive parts not knowing what else they can be used for, so be it, ha ha.

@ Jim:

What do you mean the General has retired?  Don't you know that even as we speak, the mice army is busy making more soldiers?  I believe they will lay low for a bit and build up their troop strength and then mount a massive frontal attack.....be ready.  Hey, you don't think they are intercepting your battle plans off of the computer do you?  This might explain how they manage to be one step ahead of your attack plans.  Ha ha.  Don't give up the fight!

Bill

[innovation_station]

i made my video for you all 

dead aa chargeing a cap useing 1 feed from mk2 coil

ist!!

http://www.youtube.com/watch?v=0dpXXvgYrYU

[Mk1]

@ist

I made one with the toroid from the cfl , 10 mm by 4mm , got 4x20 volts , should light easy 100 leds in parallel bright. i will try to go for neon on it and button cell , its a tiny one , nano jt lol. Btw it even works with out resistor , little toroid can work at real high freq.

Mark

[weri812]

hello fellow workers

is  good video

mk1 good work  2ooooooooooooooooo

my jt just died 384 hours. now to build an mk2

see you all later

God Bless
wer