>From my Radiola 17 1926 one of the first plug in loud speaker radios. Radiola III above, 1923 battery powered, headphone, and non-operative, yet.
www.angelfire.com/scifi2/zpt/temp/christmas_1926.mp4 video is approx 7mb If you want it earlier we will have to go to Morris Code. Perhaps I will have the first cold fusion music machine in my time. Frank Znidarsic