Thread: Crystal radio kit, need some help figuring out how it works
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Old 04-17-2022, 08:41 PM
Ed in Tx's Avatar
Ed in Tx Ed in Tx is offline
Zenith Walton My 1st TV
  
Join Date: Nov 2008
Location: DFW
Posts: 1,420
No battery needed. You just need a good ground, RF from an antenna, and high impedance headphones or an earphone. Those are the 4 connections it has. Power is from the rectified RF. And of course replace the bad diode if it is indeed bad.
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