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Solid States Devices => Joule Thief => Topic started by: hartiberlin on November 24, 2009, 02:48:09 PM

Title: Very bright light selfmade from Aluminiumfoil and Aluminiumoxid
Post by: hartiberlin on November 24, 2009, 02:48:09 PM
Have a look at these 2 videos and the comments sections
at youtube.

http://www.youtube.com/watch?v=WMX-QRJqO3I

http://www.youtube.com/watch?v=fn2RZLt-QT0


It seems the high voltage could also be produced by
a better Joule Thief and then this alufoil is
oxidized to aluminiumoxid, which burns very brightly.

Now put this into a glas bulb and this could be an easy to make
bright light source, cause Aluminiumfoil is very cheap.

Regards, Stefan.
Title: Re: Very bright light selfmade from Aluminiumfoil and Aluminiumoxid
Post by: WilbyInebriated on November 24, 2009, 03:42:01 PM
hi stefan,
i have done something along the lines you suggested in the past.
i used a circuit that outputs >1000V and i used tungsten (it was at hand) instead of aluminium. it lights nicely and has a beautiful blue corona all around the inside of the bulb.

i would like to see someone do it with aluminium also.
Title: Re: Very bright light selfmade from Aluminiumfoil and Aluminiumoxid
Post by: jadaro2600 on December 05, 2009, 04:59:35 PM
This may have some interesting applications.
Title: Re: Very bright light selfmade from Aluminiumfoil and Aluminiumoxid
Post by: Earl on December 06, 2009, 03:19:09 PM
Harti,

multiply 25,000 Volts times 20 mA and you will understand why the light is so bright.

Earl
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