Early 1920th telegram vacuum tube radio transmitter

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Size: 4566px × 3464px
Photo credit: © Ladi Kirn / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: communication, communications, detrimental, electric, electrical, electricity, electrodynamics, electron, obsolete, radio, radiogram, signal, technology, telecommunication, telegram, telegraph, telegraphic, transmit, transmitter, tube, vacuum, vintage, wireless