File:Vintage Cambridge Portable Transistor Reel-To-Reel Tape Recorder, 3 Transistor Amplifier Circuit, Battery Power Only, Model IM-501, Made in Japan, Distributed by Omscolite Corp., Philadelphia, PA (12075058186).jpg - Wikimedia Commons
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Category:Portable tape recorders - Wikimedia Commons
Vintage Cambridge Portable Transistor Reel-To-Reel Tape Recorder, 3 Transistor Amplifier Circuit, Battery Power Only, Model IM-501, Made in Japan, Distributed b…
File:Vintage Cambridge Portable Transistor Reel-To-Reel Tape Recorder, 3 Transistor Amplifier Circuit, Battery Power Only, Model IM-501, Made in Japan, Distributed by Omscolite Corp., Philadelphia, PA (12074677343).jpg - Wikimedia Commons
Electra Model Im 501 Transistor Tape Recorder