By A Mystery Man Writer
AEG Magnetophon - Reel to Reel Tape Recorder Manufacturers - Museum of Magnetic Sound Recording
Laying down sound: early recording inventions from wire to tape — Google Arts & Culture
Beginnings Museum of Magnetic Sound Recording
Martin Theophilus of The Museum of Magnetic Sound Recording, Part One – PS Audio
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Telefunken AEG Magnetophon M20 Stereo 1/4 Reel Tape Recorder - REF
AEG Magnetophon - Reel to Reel Tape Recorder Manufacturers - Museum of Magnetic Sound Recording
Reelin' in the years: Tracking the history of magnetic tape • The Register
Tape Recorder, PDF, Tape Recorder
1/4″ Open Reel Audio – Media Preservation at MSU Libraries
AEG Magnetophon - Reel to Reel Tape Recorder Manufacturers - Museum of Magnetic Sound Recording
First tape recorded with 1934 AEG Magnetophon prototype
Beginnings Museum of Magnetic Sound Recording
AEG Magnetophon Tape Recorder