Joule Thief

[resonanceman]

Dog

a potentiomete or pot is  a variable resistor
it  will  usually have  3 coonnectors on it ........one to each end of the  resistance element and the center  to the  wiper .
You  will be using  the center  and one of the other connections

If you have an old radio  or something like that the volume  control is a potentiomete

they make  pots  with different resistances .....  try to get one  with at least 1 K restance ......more  is  OK 

gary

Dog

while you are thinking   of  getting  parts   

When  you replace  the resistor  in your JT  with a pot  if you  connect   a capacitor across the  connections  of the pot  you  will have a tank circuit .   I have found  that some  toroids  don't   work  without  this cap .       
The  tank goes into  resonance    at different  frequencys  based on the capacitance and  resistance    ......  if   you  get  I usually try a 1uf cap and  a.01uf      sometimes  with  the  1uf   the  JT will slowly blink .



gary

[jeanna]

Hi everyone,
I have a little success to crow about.
I only made 1/2 of a MK2 and lost count so I will have to recount it. And besides I can't really tune this til my precision pots come monday, BUT

I did get 10.8v and 10.6 v rectified from the 2 secondaries I wound. This feels cool. The light got terribly bright with each one. Not orange, but blazing bright when I turned the base resistor down and the only resistor is one that measures 799ohm.

Now, I will do my best not to get distracted while counting again. 

Thank you Mark. This is a great design.

jeanna

[Pirate88179]

Jeanna is correct on the DMM's from Allelectronics.  I bought 2 of them 2 $8.00 each and I was impressed on how good they work.  (I am using them on my Bedini for input and output meters)

@ Jeanna:

Way to go!  yes, Mark does have some great designs and I hope all of us can replicate them.  It is fun when it works isn't it?  I love this stuff!

@ MK1:

Thank you for your contributions here and your designs.  More folks than you know are replicating these and are enjoying the output.  Please keep up your good work.

@ All:

Another slightly off-topic video I made today after work.  Yes, it is still just the Bedini motor but...this thing has been running for a couple of days and just keeps going.  Soon I will tie it all into what we are doing here.

http://www.youtube.com/watch?v=2W0kOQAkYDc


I have a lot of reading to catch up on as well as continue my quest to update our diagrams topic.  I have been so tied up lately but...I will do it I promise.

Bill

[innovation_station]

well just to inform..... 

THIS AINT NEW.....  NEW TO MOST ..... 

1 WORD    TESLA...  DUHH!!

LOL

I SEE NHOTHING NEW IN ANY OF THIS ............

hummmmmm...   

the pickup coils are nothing more than a generator winding ....  the jt nothing more than a motor ... 

im still scratching my head why this is any diffrent than anything else ...   

lol

it is not ...   well the wohle world only uses half it but ... it AINT NEW .... LOL

so i saw today a working ou device built many years ago....   simple sure i saw it work ... lol   sure same old sh!t lol   


but i think input was 220 v ac 1 phase output was 220v 3 phase ....   hummmmmm

lol

sure it works well ...  lol   

but it is machinical ....   and requires a grid source ...   

altho i hear somthing like 36 dollar hydro bill ...  hummmmm    hence the grid powers the device ...  the device powers 220v 3phase  shop tools........ 

what is it ...  lol    but a mechanical ring ... 

!st

[jonnydavro]

Hi.Jeanna mentioned a few pages back that you could light led's on a secondary coil and the current draw to the primary JT goes down well i can confirm her findings.I had to add a 1k pot after the ampmeter to control the input voltage to the jt circuit and then by tuning this pot and the 1k pot on the base off the transistor you can indeed get the effects jeanna described.Thanks Jeanna for reiterating this important discovery.Here is a video.I will try to post some pic's here tomorrow but my file compressor has evaporated .
http://www.youtube.com/watch?v=W5irW__iwfk
Regards jonnydavro