An electrical circuit that runs entirely off power in trees

[Richard O'Neill]

 That's nothing new! The crystal set community has been doing that for 
decades. Anyone remember Ben Tongue of Blonder-Tongue fame?// He and his 
partner developed and marketed electrical devices several decades ago. 
In recent years he's conducted R&D on advanced crystal set technology 
and established a web site. Check out his plans for a highly efficient 
crystal set that also charges a super capacitor powered amplifier.

http://www.bentongue.com/xtalset/25AmpXS/25AmpXS.html

http://www.bentongue.com/xtalset/23DtXs/23DtXs.html

http://www.bentongue.com/index.html