Joule Thief

[Mk1]

@resonance man

You really should try the inside , there is many times more power on the inside .

Mark

[resonanceman]

garry

your totally nuts    in a good way ... lol

you wouldnt beleave  some of the wild installs we have done ...   but nothing with mutiple antanas

IST

I am not  nuts ........even in a good way .

I  am a genius  in some  ways .
The  problem is ....no one  ever believes that ......probably because I am dumb is so many ways .



I have seen a few really cool  arrays .
A  yagi  can  be used in  an array although it  is not often done .
I am not  expecting   miracles here .
I am guessing that  it will take   at least  3 or 4 yagies  to double the siganl .
They  will  have to be made  very carefully  .......but the nice part is  the  parts required to make them are  real cheap .....    just   half inch  square metal  tubing  and  metal  rods ........  these things can be  bought  just about anywhere .


gary

[resonanceman]

@resonance man

You really should try the inside , there is many times more power on the inside .

Mark

Mark

Thanks

I plan on it .

I am still into non  toroid JTs
I  just made  a core out of  florist  wire .
It is  about  1/8th inch thick ........and  half and inch  wide .
The  diameter  is  just a little  to small  to fit my LMs inside of it . At least  as it is wrapped now .     I have  it  completely  wrapped in  #22 magnet wire . 
I  was going to wrap  a primary over  the  mag  wire .......my first attempt  didn;t work .... 12 wraps  for  E  and 6 for base

gary

Edit

I  guess  my post was not quite accurate .
I don't have anything against toroids .
What  I am against is  using  only manufactured  toroids .
They  might  be the best for the little stuff ....... but   I do not  believe that  they  will ever be available   in the  sizes or  compositions  needed for  larger  projects . 

[stprue]

@ Jeanna

As promised

1 Biggo
x2 style base and collector coils at 5 wraps each side for a total of 10 base and 10 collector winds using 22 gauge mag wire
4 pieces of plastic covered wire 22 gauge to form 2 pickups
MJE3005T transistor
5K 15turn trimmer POT set at .872K
800v@1amp bridge
(2) 10nK400 metalized caps
(1) 220uf @25v electrolytic cap (brown)

White alligator clips wire are coming off the Base coil (1 into the transistor/base and then 1 going to side of the first pick up coil)

Yellow alligator clips are coming off the collector (1 going into the trimmer POT and then into the transistor/collector and 1 going into the other side of second pickup coil)

Green going into the ~~ of the bridge

Input
1.5vDC @ 0.13A = 0.20W

Output
192+ or- volts DC

P.S. This set up is different then the one in the video!!!

[stprue]

@Jeanna

Instead of connecting the second base and collector wires (Yellow/White) put leds in between the connection and you get light and more voltage! Cool set up right?

P.S. I put a little 221 cap between the base resistor.