Sony TR-52 1955
Sorry, this page is not translated yet. Automatic translation used.
The Sony TR-55 portable radio was manufactured in August 1955 by Tokyo Tsushin Kogyo, and subsequently Sony. ,8caa42f5a9df53968033bf99609e44f6 The AM range is 535 ... 1605 kHz. ,8caa42f5a9df53968033bf99609e44f6 Sensitivity ~ 2 mV / m. ,8caa42f5a9df53968033bf99609e44f6 The output stage of the bass amplifier is single-ended. ,8caa42f5a9df53968033bf99609e44f6 Maximum output power 25 mW. ,8caa42f5a9df53968033bf99609e44f6 Power - 4 AA elements (1.5 x 4 "u003d 6 volts). ,8caa42f5a9df53968033bf99609e44f6 The range of reproduced sound frequencies is 250 ... 3500 Hz. ,8caa42f5a9df53968033bf99609e44f6 Dimensions of the model are 140x89x38 mm. ,8caa42f5a9df53968033bf99609e44f6 Weight 560 grams. ,8caa42f5a9df53968033bf99609e44f6 The first prototypes of the radio since the fall of 1954 were referred to as "Sony TR-5" in terms of the number of transistors, and later since 1955, "Sony TR-52" in terms of the number of transistors (5) and semiconductor diodes (2). ,8caa42f5a9df53968033bf99609e44f6 The serial model "Sony TR-55" was named after the year of manufacture (1955). ,8caa42f5a9df53968033bf99609e44f6 ,null,ru,null,null,null,null
Information from collection of Valery Khartchenko