Joule Thief

[Pirate88179]

@ 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

[Mk1]

@pirate

Led at 33.cent?

And how many battery comp finance dollars store supplier comp to create new need for battery?

[innovation_station]

 

im done the micro mk2 tiny toroide i can tune it better




i have out put 15vdc x2 feeds .... 




ill post a pic in a bit i may tune it better yet!!

took 30 seconds to wind it

btw i know all about 1 turn secondaries.....  remember the cosmic rose     22 1 turn secondaries.......

[Pirate88179]

MK1:

Yes, see, I have always wondered who really owns most of the flashlight companies.........I would not be shocked (no pun intended) if it were eveready, duracell, etc.  So, what you say makes perfect sense to me.  If we keep going like we are, boy, are they going to be pissed.

Bill

[electricme]

@at all new B ies,
Welcome to Pirates Joule Thief, the marvelous place to be, full of surprises and breakthroughs.

Can we drive a boat with this JT, I think we can.

@Bill,
If you could email that item so I could look at it, that would be great.

Yes, inefficient circuits are designed this way to make people buy more batteries, or, just mabe the designers think the JT is just a toy and ignore it. hmmmmm.


@Koen1,
Germanium transisters I think are the way to go, if one turns on below the usual .6volt silicon ones, then it stands to reason we can get better usage out of it. Theres also something about the humble LED, theres a lot more this device can do that hasnt been discovered as yet. Can it be used as a transister itself? just a throw away line, could be wrong.

The variable resistor (these days) is made for very low currents, although I have seen wire wound ones 40-50 years back, then the car maked Holden (no doubt there are others) had a heavy duty wire wound resistor, mounted in the dash to dim the dash light bulbs.

@ist
I think you mean by charging your 4 batts by 2 batts via the modified 3 pole toy motor?
This is one of the things I want to do.

@mikem_2au
Addictive     YES IT SURE IS   
I havent seen anyone before use a common earth before, someone mentioned to remove the diode, well as an experiment, add annother diode, back to front to the orig one, then the output will now be a usual (+) with a (0) volt and a (-) negative volt unit.

This hasent been done here before, there are heeps of IC circuits that need this type of voltage driving them. 

@Hazens1
running a 555 off 1.5v is a cool idea, but if Mike (above note) could get a result from a +v     0     -v setup that might make the 555 and other JT circuits more efficient.

jim (the generals retired)