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18 Jan 08

Hi-fidelity Homemade Loudspeaker. If you already saw my homemade plastic cup speaker, then keep your socks up because you will be surprised with my "Hi-Fidelity homemade styrofoam-plate speaker". (8/6/2007)

diy howto speaker audio electronics fun music tutorial hardware hacks crafts daily

23 Jul 07

Instructables Rain or Shine Solar Charger

Have you ever wanted a waterproof, weatherproof, lightweight portable solar charger for small electronics? Whether you're a backpacker, a survivalist, or just trying to preserve the planet so you can enjoy it outdoors a little longer, this is the project

www.instructables.com/...EVKX8JWF46WOG97 - Preview

electronics solar diy howto charger instruction useful