Joule Thief

[slayer007]

Hello everybody!!!

I am glad that @gadgetmall and @electricme's wife are okay, also @gadgetmall's daughter.

In general I am trying to mix a lot of different ideas and make at least a good unity joule thief pulse motor.
In order to accomplish the task at hand I replicated a cat whisker device posted back on this thread.

My replication is this one and I would like to know which side is the cathode.
Does anybody knows?

Special thanks to @pirate for this great topic!!

Jesus

It should go through the razor blade then come back out the safety pin.
Also I think you might have to blue the razor blade for it to work.

Heat it up with a torch till it glows red hot.

[resonanceman]

Some  of these  look like they  could be pre made  JT  coils.

http://www.surplussales.com/Inductors/FerMisc/FerMisc-2.html

they also  have lots of  toroids 

http://www.surplussales.com/Inductors/FerToro/FerToro-3.html


gary

[slapper]

@Jadaro2600:

I've used this 'magnetic' paint stuff: http://www.kling.com/magneticpaintindex.html
Seems to work okay. Got some at a local Michaels Arts and Crafts store.

@nievesoliveras

Take a look at what this dude has done with different materials: http://home.earthlink.net/~lenyr/zincosc.htm
Here is his main url: http://home.earthlink.net/~lenyr/index.html

Take care guys.

nap

[nievesoliveras]

It should go through the razor blade then come back out the safety pin.
Also I think you might have to blue the razor blade for it to work.

Heat it up with a torch till it glows red hot.

Thank you @slayer !
I will try that.
Hope that it work.

Jesus

[nievesoliveras]

Some  of these  look like they  could be pre made  JT  coils.

http://www.surplussales.com/Inductors/FerMisc/FerMisc-2.html

they also  have lots of  toroids 

http://www.surplussales.com/Inductors/FerToro/FerToro-3.html

gary

Thank you @resonanceman. The toroids are cheaper At Goldmine.
Those already made toroids are fantastic though.

@Jadaro2600:

I've used this 'magnetic' paint stuff: http://www.kling.com/magneticpaintindex.html
Seems to work okay. Got some at a local Michaels Arts and Crafts store.

@nievesoliveras

Take a look at what this dude has done with different materials: http://home.earthlink.net/~lenyr/zincosc.htm
Here is his main url: http://home.earthlink.net/~lenyr/index.html

Take care guys.

nap

Thank you @slapper
Those are good links!!
I will give it some time.

Jesus