broadcast, radio, functionality of the radio, drawing, 1935, Additional-Rights-Clearences-Not Available

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Additional-Rights-Clearences-Not Available

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1930s, 20th, amplifier, audio, backcoupling, broadcast, century, drawing, dynamic, explanation, functionality, loud, loudspeaker, radio, radios, selectivity, set, sets, shematic, speaker, technic, technics, tube, waves