An antique radio is a radio receiving set that is collectible because of its age and rarity. == Types of antique radio == === Morse receivers === The first radio receivers used a coherer and sounding board, and were only able to receive continuous wave (CW) transmissions, encoded with Morse code (wireless telegraphy).
An antique radio is a radio receiving set that is collectible because of its age and rarity. == Types of antique radio == === Morse receivers === The first radio receivers used a coherer and sounding board, and were only able to receive continuous wave (CW) transmissions, encoded with Morse code (wireless telegraphy).
Source: Wikipedia "Antique radio" · CC BY-SA 4.0
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