Joule Thief

[Mk1]

@all

I just got a idea , what if we used a motor to pulse a toroid ...

One motor should pulse the dc , in a square wave , plus if we use 2 motor we can have 2 freq.

The same energy will pluse the toroid plus get free rotation ( could be reused ) plus no need for transistor .

Any idea?

Mark

[PARAV]

Thank you xee2,

jeanna

Jeanna

Could this be of any help to you in calculating the inductances ?

http://www.captain.at/electronics/coils/


              or

http://www.crystalradio.net/cal/indcal.shtml


              or for spiral (pancake coils)

http://www.csgnetwork.com/spiralcoilinduccalc.html


Hope  this helps


Parav

[jeanna]

Thank you PARAV,
I actually have crystal radio on my bookmarks, and I use it. Thank you.

My problem has been that I do not know the permeability of my favorite toroids, but that is now solved with the meter.

I have been studying Walter Lewin for the past week.
I have to brush up on everything to do this, but I am willing. Especially with a guy who shouts that the Kirchoff rule is merely a special case of Farady's law, and he lectures on and describes so well many things we are doing here.
He has a nice open twist to his approach.
It takes a very brave man to teach out of the box as he is doing. I am loving understanding what I have been doing.

Things have been a little slow here at the joule thief thread, and this is the perfect time to study physics, along with adding inductors to my earth battery, of course!

Thanks again,

jeanna

[Pirate88179]

@all

I just got a idea , what if we used a motor to pulse a toroid ...

One motor should pulse the dc , in a square wave , plus if we use 2 motor we can have 2 freq.

The same energy will pluse the toroid plus get free rotation ( could be reused ) plus no need for transistor .

Any idea?

Mark

Mark:

I have never heard of anyone doing this before so, you may be the first.

It sounds like a great idea to me.  I am not sure I know enough to attempt it but, I think I see what you are getting at and it sounds good from here.  Nice thinking.

Bill

[dllabarre]

I have been studying Walter Lewin for the past week.
I have to brush up on everything to do this, but I am willing. Especially with a guy who shouts that the Kirchoff rule is merely a special case of Farady's law, and he lectures on and describes so well many things we are doing here.
He has a nice open twist to his approach.
It takes a very brave man to teach out of the box as he is doing. I am loving understanding what I have been doing.

jeanna

I've watch several videos already tonight.
Now I'm hooked on this guy!!!   

"and he lectures on and describes so well many things we are doing here"
Which lecture are you referring to here?

Thanks,
DonL