Saturday, July 30, 2011
CD wind turbine with Epson stepper
Epson stepper motor from a broken printer ,capacitors and diodes from an old computer. CD wind turbine turns on very low wind, very quietly, the LED light up brightly in the dark. Green energy cost 0 USD.
Friday, July 1, 2011
24 MHz QRP TX
Newer Posts
Older Posts
Home
Subscribe to:
Posts (Atom)