Speeches Must Be Short’: Radio and the Birth of the Modern Presidential Campaign – Pacific Standard
File:Vintage Fada Neutrola Grand Radio With Built-In Speaker, Model 185-A, Battery Powered, Broadcast Band Only (MW), 5 Tubes, Made In USA, Circa 1924 (14776146969).jpg – Wikimedia Commons
Radio ”Marconiphone Type V1”, 1924
Poste à 4 lampes 1924 Radio Radiomuse, A. Robert; Paris, Montrouge | Radiomuseum
17: Radio News showing the idea of the radio doctor, 1924 | Download Scientific Diagram
File:Vintage RCA Radiola Semi-Portable Radio, Model AR-812, Broadcast Band Only (MW), Battery Powered, 6 UV199 Vacuum Tubes, Paired With A Radiola Model 100 Speaker, Circa 1924 (14782561019).jpg – Wikimedia Commons