Amazon.com: RadioShack Lightweight Sport AM/FM Stereo Headset – Wireless Radio Headphones with Built-in Antenna and Excellent Reception – Double Adjustable Headbands – Great for Walking, Exercising and Working : Electronics
1983 Burger King Headphones. Radio Shack. Aren't You - Etsy
Piezo Electric Crystal Earphone Sensitive High Impedance Ceramic Ear Piece 3.5mm for Transistor Radio/Crystal Radios DIY Electronics Projects 1/8 inch Audio Jack Connector Wire Piezoelectric Element - Walmart.com
Crystal Radio Circuits
Found this kit at a thrift shop. Supposedly from the early '70s. Still can't get it to work properly. : r/amateurradio
Amazon.com: RadioShack Lightweight Sport AM/FM Stereo Headset – Wireless Radio Headphones with Built-in Antenna and Excellent Reception – Double Adjustable Headbands – Great for Walking, Exercising and Working : Electronics
Science Fair 28-234 FM-AM Radio Kit
Science Fair 28-234 FM-AM Radio Kit
Borden Radio Company - Radio Kits and Designs for Old and New Styles
Building a crystal radio out of household items | Science Toys
Poor Mans' Electronics Web Page - Crystal Radio
Crystal earpiece - Wikipedia
Crystal Radio Circuits
Use Earbuds/Earphones with Crystal Radio - YouTube
Earphone for Crystal Radio FEL-971102 Jameco Valuepro
D.P. Goldenberg UofU
Crystal Radio AM/FM radio kit by Radio Shack item# 28-179 (CR#3) | eBay
Crystal Earphone (Large)
Crystal earphone/earpiece
Crystal earphone/earpiece
Borden Radio Company - Radio Kits and Designs for Old and New Styles
Crystal Earphone : United Nuclear , Scientific Equipment & Supplies, United Nuclear , Scientific Equipment & Supplies
Remembering the Crystal Radio | Nuts & Volts Magazine
Crystal Radio | Hackaday
Piezoelectric Ear Piece Crystal Radio High Impedance 3.5mm 1/8in Mini Head Phone | eBay
Antique Radio Forums • View topic - crystal radio
