Some thoughts on UHF Crystal Radios

alfacliff

Joined Dec 13, 2013
2,458
a couple of ferite beads or an rf choke in the headphone leads should stop rf leakage through the headphones, and increase output.
 

ronsoy2

Joined Sep 25, 2013
71
Use a 1N21 microwave point contact diode. They will efficiently rectify millivolt signals up to past 10ghz. If you can't find any surplus, email me and I will send you a few.
 
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