Joule Thief

[Pirate88179]

Hi everybody,
Here is number 2

http://www.youtube.com/watch?v=C9ZFKDSxFTE

This one has 2 more stubblefield generators and is the remaining video from yesterday.

Bill,
the tags and category disappeared and have been replaced with some offer to invite others blah blah.
It may be because it recognizes me.
Please someone confirm that the category is science tech and the tags are earth battery,jt, stub, and radiant energy.

thanks,

jeanna

Jeanna:

Yes to all of the above.  Nice job again.  I think Youtube is the way to go for us to show our vids.  I subscribed to your channel.  This way, I will be notified of any new vids that you post.  Great job over there.

Bill

[xee2]

@ jeanna

Were you able to play the mp4 video in Quicktime?

[jeanna]

Thank you, Bill!!

I agree.
2 years ago it was too much of a chore to upload to youtube. This was a snap. Easy easy.

@xee2,
Thank you.
I was just at the mouser website applying filters etc.
There is a $5 version of 36v which looks like the old style caps I got a handful of from the goldmine. It was measured in picofarads too.

Is this how they are used and how they are rated?
I guess it makes a kind of sense.
this is especially nice for me because each time I said my idea about the teeny spark gap someone would always jump in to say I needed much higher voltage.
I believe this shows that that idea is untrue.

If I can make a spark at 36v and the flyback voltage is easily that on most of my joule thief circuits, I am more sure than ever that this was a method that was regularly used to make oscillations with an induction coil 130 years ago.

Thank you for this.

There is one that makes a spark at 75v and costs 41 cents. I hope that is not the one with the minimum of 235 pieces! 
I may be a new customer of mouser!

thanks,

jeanna

edit:

Were you able to play the mp4 video in Quicktime?

yes, in fact they have always been an automatic play with quicktime and I just thought mpeg4 was an apple in-house movie format. I guess not, but it was an easy job to see it. Thanks.

j

[xee2]

@ jeanna

The 36 volt one was $112, but there was a 35 volt one for $5.39 Bourns 2026-35-C3F.

I did not know they made them at that low of a voltage. I need to get the data sheet to see what it is.

[xee2]

@ jeanna

Check the data sheets before you buy. The one they had listed as 35 volts is really 350 volts.