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

File:Vintage Ross Mark 1602 Reel-To-Reel Tape Recorder, 6 Transistor, AC Or Battery Operation, Made In Japan (15461054244).jpg - Wikimedia Commons

Electra Model Im 501 Transistor Tape Recorder

All Transistor Portable Tape Recorder MS 504 Made in Japan Untested Display

Vintage Electra Tape Recorder 4 Transistor Early Japan Built Repair

Category:Portable tape recorders - Wikimedia Commons

My Transistors, original or copy?, Page 66

All Transistor Portable Tape Recorder MS 504 Made in Japan Untested Display

REPAIR Vintage Apolec Model RA-11 Reel To Reel Transistor Tape Recorder w/Mic

My Transistors, original or copy?, Page 66