![Amazon.com: United Nuclear The Ultimate Crystal Radio Kit Authentic Cat's Whisker Diode - Vintage Crystal Radio Circuit Craftsman Radio Kit : Electronics Amazon.com: United Nuclear The Ultimate Crystal Radio Kit Authentic Cat's Whisker Diode - Vintage Crystal Radio Circuit Craftsman Radio Kit : Electronics](https://m.media-amazon.com/images/I/51bZ4cubHLL._AC_UF894,1000_QL80_.jpg)
Amazon.com: United Nuclear The Ultimate Crystal Radio Kit Authentic Cat's Whisker Diode - Vintage Crystal Radio Circuit Craftsman Radio Kit : Electronics
![am - Building a crystal radio with my brother. How does this circuit work? - Amateur Radio Stack Exchange am - Building a crystal radio with my brother. How does this circuit work? - Amateur Radio Stack Exchange](https://i.stack.imgur.com/956lU.gif)
am - Building a crystal radio with my brother. How does this circuit work? - Amateur Radio Stack Exchange
![Technical Trivia by Dr. FB / Why we don't use a silicon diode in a crystal radio?|Jul.2020 - Monthly FB NEWS Technical Trivia by Dr. FB / Why we don't use a silicon diode in a crystal radio?|Jul.2020 - Monthly FB NEWS](https://www.fbnews.jp/202007/ww05/images/02.jpg)