View Single Post
Old 11th Jan 2011, 7:51 pm   #9
KeithsTV
Nonode
 
KeithsTV's Avatar
 
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,571
Default Re: Battery-less audio amplifier

When I lived in South Birmingham I was about 8 miles from the Droitwich transmitter and with 100ft of wire as an aerial and a decent earth I could get 1v dc, as indicated on my multimeter, from a crystal set tuned to 200kHz.

Keith
KeithsTV is offline