Lighting a LED with a candle, the youtube video:
I had some problems getting close focus, so had to move away a bit. The thermocouple wire is very thin and hardly visible in the picture. It was red hot.
Lighting a LED with a candle, the youtube video:
I had some problems getting close focus, so had to move away a bit. The thermocouple wire is very thin and hardly visible in the picture. It was red hot.
Jan are you using just one thermocouple? If you can tolerate more resistance you could string a bunch in series. (There's all that heat going to waste :^) I'm not sure of the best way to cool all the intermediate jucntions.
George H.
Interesting. Something like the "joule thief" circuits discussed awhile back. But here is something perhaps more practical:
And another way to do it:
Paul
On a sunny day (Tue, 2 Oct 2012 05:30:22 -0400) it happened "P E Schoen" wrote in :
That is a very nice site, and for sure I will experiment a bit with copper oxide.
Mechanical alternator, I guess you need a bit of voltage to pull a magnet, break a contact, strange.
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.