Joule Thief

[jeanna]

@jeanna

So i assume the secondary (pickup and 3rd coil) , you can connect a led to it it will light, but preferable to use 4 diodes lets say 1n400x

Like on the picture , connect the secondary coil to the ac (little waves like in the bucket) side of it and the led to the dc (+ and -)side.

HUH?

The secondary - pickup coil- is lighting the led that is soldered between its wire ends.

But the led from the original joule thief remains unlit.

What does this have to do with additional diodes? (don't answer that yet, please.)

My question is this:

Is the regular led that is part of the joule thief itself supposed to stop lighting?

Thanks,

jeanna

[timmy1729]

@jeanna

So i assume the secondary (pickup and 3rd coil) , you can connect a led to it it will light, but preferable to use 4 diodes lets say 1n400x

Like on the picture , connect the secondary coil to the ac (little waves like in the bucket) side of it and the led to the dc (+ and -)side.

Can you possibly show a diagram with the bifilar winding and the pickup winding and rectifier and how they are connected? Does the pickup coil tie in to the current JT circuit?

[Mk1]

@jeanna

Both led are supposed to work.

Usually led light like the regular jt , but also on the 3rd coil but since it is only connected to the led the current sent to the led is then sent back
in the coil , that like i said is a no no. You be doing so are limiting the current for the regular jt ,it could also mean the joule thief is not properly done in the first place(there are other ways to light the led with same parts). So try unsoldering the led and it the original led work you will have your answer.

@timmy

Bifilar only means 2 wire , like the regular joules thief , just put one additional wire on the joule thief you have now, about 40 turns that is all .
Tell me when your done.

[electricme]

Good morning all,

@ jesus,
welcome back, it has been a little while since we seen you, like me you have noticed just how fast this thread is moving, very fast inded.
I stay up until midnight some nights, and I comeback next morning and there are 3 or 4 extra pages to catch up on. phew must be powered by HHO

Keep going my friend, let it all sinkin.

@ all
Bill (pirate) mentioned a couple of posts back his confusion about "bridge diodes" I see jeanna has provided a nice diagram, well done jeanna, however I thought I might add a little to it also.
How to actually make a bridge diode from discreet diodes.

@ jeanna,
Thankyou for your generious remarks about my bobbin, I was trying to think the right terminology to use with this device, TA.

Jeanna, the LED connected to your actual JT should lite up, this is to give you an indication that it is working, but its main purpose is to help in frequency control of the JT.
The transister has an internal diode (as well as other parts) but its main function is to cut the current to the coil, so the collapse of the magnetic field in the torid will be picked up by the secondary coil of the JT.
It is this "juce" we are trying to harness, the sharper this happens, the more "juce" is produced, Similar to Stan Mayos 555 circuit on his HHO system.
Take a look see at ISTs utube videos, particually the one that has the see through relay chatting away merilly, this should give you a clue.

@ IST, and MK1
Thank you ist for your replies.

MK1 first, you mentioned you had 2 JT on 1 torid, is this right? how many output coils do you have, I am confused, might be me.


I will get back with some more questions for you both shortly, (a few hrs perhapse) I got to wind my secondry jumbo torid and get it all soldered up and working first.

IST, I saw the utube you did where the coil is facing a brown vertical 3" or 4" pipe? I listened to the frequency "sounds", from the 1st then 2nd then 3rd frequencies in the seperate videos.
hmmm I will go back later and watch them again, no comment yet from me, it will come.

jim

[Mk1]

@electricme

Last page i posted a picture and more details just for you.