Joule Thief

[electricme]

@MK1
Thank you Mark for your kind remarks about the VIDEO I posted on P101 **** HINT ***** to all.        

Yep, I have noticed how people don't recognise the Video notification to a normal picture, it seems both are a small paperclip at the bottom of the photo, but in the case of the VIDEO posted, there is nothing to show it, as is done if I posted a photo.

If I posted a photo, it is displayed for all to see, not so a VIDEO, "hint" please Stefan.

I have sent Stephan a PM to see if he can put a ICON, mabe a "2 x 2" video icon appears that can grab the readers attention that a video is avaliable.


jim

[jeanna]

@jeanna

The reason i was asking is that i believe the second coil is not connected properly you send back stuff maybe again reversing leds or wire its the same thing it might work.

Yes, it is a possibility. I did already reverse it in the beginning. I had a shorted wire and took the new pick up coil out to be sure the winding was going right etc. The thing is it was working, but at a less effective way.

Also, I can see on the dmm that the voltage is still there on the first array even when it is not lighting up, and it is also there on the second array, but with a bigger struggle.

I think I should take both pickup coils out and make one longer pickup coil and see just how far one coil will go on this joule thief. It won't be difficult, I don't think.

It is what I was planning to do today before I wondered about multiple coils using the same toroid.

I am wondering if there is some kind of out of phase going on here. If I could switch them perhaps, they would light in a series and if the switch is fast enough like the first joule thief, I won't see the off times.

Thank you for your help.

jeanna

@jim, this xo laptop thought your movie belonged to the sonic measuring program. I don't know how to tell it what program to open it in. I will watch your tiny video this weekend after my MAC gets back home.

[Mk1]

@jeanna

I bridge would be a good idea because it help making sense of it to. Having a dc reading , but also see how many led works from a single turn then lets see.You can also try bigger size wire . But i don't really see a limit as to how many can be worked at the same time.

The location of the coil and the symmetry play a role.

Mark , Thank for your work.

ps before destroying new experiment always check coil, battery and leds for polarity by testing it ,nothing will blow but if a mistake was done you will know for sure .
It seems like i have to do it twice .

[WilbyInebriated]

@all

I almost forgot the french cousin the mace of Michel Meyer .

http://jnaudin.free.fr/html/mmcgen.htm

The ferrite toroid is a good replacement for the ferrite rod and the holder can be eliminated.

i can't read french, anyone have any idea how many winds the coils have? and what the crystal freq. is?

[Mk1]

@WilbyInebriated

I do speak french but it dosen' t say , but i can get you the math.
And think of it i may have a English version.

i will be back