Joule Thief

[totoalas]

Hi Nickz,
Those were the days of the TIp and Ring Analog telephones ( black ones ) ... so next time time your dog barks   you know what to do   hehehehhh
Its 50 v dc that they are using here in the Philippines....
The APM can be  connected to one line   and water tap and still be used.....
The new version of Sharkmongrel  High voltage Joule thief seems to take over the primary source for tesla........ as for the secondary coil
How to transfer that arc  is one thing  and convert to usable power   is another
He did not say how many amps he is using in the input.... He only mentioned .. jacobs ladder will not work due to low amps
totoalas

[Masud]

Well I'm gonna try, if I success,  to you, to be honest, this will be the most valuable circuit in my life, 

[drodenbe]

Hi everyone!

[conradelektro]

So here is my schematic and notes of a self runner I have been running and charging batteries for the past 3 days and the battery went from just a little over one volt to 1.2589 approx.  It has run a jumbo led and charged several 1.2 ni cad batteries.  I have charged two 1.2 ni cads in series also.  Both run and chg. Batteries charge at same time.  The circuit is repeatable.  My Eng. friend who also has been working on similar projects for the last 4 years has also built the circuit with similar results.  So it isn't a fluke.  So have fun and play.   Note.  I will answer some questions but I am not going to do videos and make a bunch of noise as  others have and end up as they have.

@drodenbe: you have to do more careful measurements. Three days is a very short time for a well designed Joule Thief.

I attach a Joule Thief circuit that runs at least 3 months on a "used" 1.5 Volt battery. By "used" I mean that it shows about 1 Volt when it's Voltage is tested with a multimeter at the start of that at least 3 months run time.

Greetings, Conrad

P.S.: I found this variant of the Joule Thief circuit somewhere in this threat some years ago. There are an incredible number of variations in this thread, you just have to take the time to wade through the pages. Every now and then someone claims to have an OU-Joule Thief. So far it was measurement errors. It is not easy to measure the tiny Wattages involved over a long time (months).

[drodenbe]

   conradelektro

Thanks for the info.  If you look closer you will see the difference between yours and mine.  The battery is the core of the coil.  The coil is not wound on a standard core as the others.  The battery has to be inside the coil.  Also notice I did not claim OU.  Also if you will notice I stated that in that time I ran a jumbo Led and charged several batteries from .6 volts to 2.4 volts being the batteries were in series.  I think that the fact that I was doing work and not just running the oscillator speaks for its self.  My equipment reads 5 places to the right of the decimal.  There fore I don' have to wait a month to see if my voltage is going up or down! As I said I am not going to make a bunch of noise.  I just thought I would share some of my 40 years experience as an Eng.  So Thanks for the info again, Now I will go back to sleep!  Thought It would be a mistake and my fellow Engineering friends were right.

Signed:  never to trod this road again.