Joule Thief

[Mk1]

@jeanna

If you connect them is series you get more voltage , in parallel more current .

If you burn the led they will go out.

Mark

[jeanna]

so 60 ends ..  30 outputs .... 1 wire     lol

HOW do you tell them apart.??
This is a serious question. With that many ends it must look like stranded wire.

trying 5 turn primaries ...  lol as the speck sheet test of the cores ... used 5 turn 

and i like the out of 5 

I agree 5T is becoming a favorite of mine. It seems to be a good number for a toroid. More than just a start...

I just had 4 rectified volts from a 5T primary and 4 or 5 T secondary and with a good light too. 3 LEDs on the secondary looking real bright.

@MK1
I didn't mean that.
I mean what is the reason you cut it apart? If you are just going to connect it in series?

I haven't burned out any LEDs from a secondary yet, but I have had them refuse to light when they should have. Maybe this is why? I will check them again.

thank you,

jeanna

my oscilloscope and precision pots didn't get here yet. Darn, I need so much patience to wait til monday.

[Thaelin]

   The photo of the NTE FET has a protection diode in it. This will short the
reverse spike from the coil. Some fets do not have this and would be good
for it as an option.
   Just for fun, I have a 5" torrid that I will have to wind a JT on and see what
happens. Think it will be way too much for it to work on.

thaelin

[Mk1]

@Thaelin

Welcome , and you may have surprises , thank for the Fet info .


@jeanna

I wanted to test the coils , on the Mk8 , and its easier to wind 27 turns then 216 , its almost a regular wire but a regular wire is not insulated .

Mark

Edit : also by winding it both ways it light the led in both direction , also i use one coil on each side it give me 240 instead , plus i use a second pair to feedback the positive part of the wave it boost the voltage by sending it back in the wire it effects all the coil buy induction , and the feedback timing is perfect. So now the unused coil are also working better. i can get a good voltage form any coil even if i don't have the right leads (not has high but almost), to separate them you color code them first or tell them apart with the meter check the resistance.

more wires to play with. but the mk hv is less troublesome for really high voltage , no connections to make but , not much learned in the process .

On one toroid coil one way check the led , then wind the other way then test again the led now it light in both direction.

Mark

[innovation_station]

   The photo of the NTE FET has a protection diode in it. This will short the
reverse spike from the coil. Some fets do not have this and would be good
for it as an option.
   Just for fun, I have a 5" torrid that I will have to wind a JT on and see what
happens. Think it will be way too much for it to work on.

thaelin

lol smak it with a lil more GRUNT LOL



@jeanna ...       

i dont worrie bout that .....   lol   how hard can it be ...  i was thinking a meter ...  cont beeper

i have lots of 800v rectifier diodes ... 3amp    2 per output .... wire ..   then we will pull from source and free stuff + just free stuff 

sounds like lots 0 bang for the buck ... 

sure ill list thease on the !STORE TOO 

IST!