November 30, 1946
"Municipal Station WNYC experimented with magnetic paper tape recorded broadcast this week [November 20]. Broadcast, a 15-minute portion of the National aircraft show, was put on tape last week at the show in Cleveland by Lily Supove, station's news and special events director. Recorder is called the Soundmirror Magnetic Tape Recorder-Reproducer. Cost runs less than that of a wire recorder...
"Soundmirror operates on the principle of changing sound into a magnetic pattern and converting back into sound..."
Source: "WNYC Airs Magnetic Paper Tape Broadcast," Billboard
, November 30, 1946, pg. 5..
Editor's Note: This particular Soundmirror was among the earliest reel-to-reel decks in America at the time and was schlepped up to WNYC Director Sy Siegel's 25th floor office by then Antioch College intern John Michael Kittross.