Practical wireless telegraphy; a complete text book for students of radio communication . he inductance of the coils in radio-frequenCycircuits, particularly the tuning coils of the receiving apparatus. Knowing the length
Radio Transmitter Antenna Tuning Coil/Inductor (ceramic cylinder)-FREE SHIPPING | eBay
Aerial tuning inductor from the Rugby Radio Station, 1943-1966 | Science Museum Group Collection
Radio tuning coil No. 300, 1922-1923 | Science Museum Group Collection
Tuning Coil, Radio, Lockheed Sirius "Tingmissartoq", Lindbergh | National Air and Space Museum
Building My 2nd Crystal Radio - Slinky Crystal Radio Kit - Radio Survivor
Poor Mans' Electronics Web Page - Crystal Radio
A Three Circuit Tuner From Days Gone By This is Three Circuit Tuner Coil from the early days of radio. It consists of a fixed tuning… | Radio, Old radios, Ham radio
Crystal Radio Coil
My New Favorite! Crystal Radio with Antenna Tuner - YouTube