Junyj svjazist 1991
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The toy "Young Signalman" since I-quarter 1991 was produced by the First Moscow Experimental Plant "Promsvyaz". ,8caa42f5a9df53968033bf99609e44f6 The toy "Young Signalman" is designed to study the Morse code using one of the two devices, as well as to conduct two-way telegraph communication using two devices and a two-wire line. ,8caa42f5a9df53968033bf99609e44f6 The length of the two-wire line is 15 meters. ,8caa42f5a9df53968033bf99609e44f6 Each device is powered by a 3336 battery with a voltage of 4.5 volts. ,8caa42f5a9df53968033bf99609e44f6 Tone of reception and transmission of 1000 Hz. ,8caa42f5a9df53968033bf99609e44f6 The electrical circuit of the toy allows you to organize work by telegraph in a network of several devices. ,8caa42f5a9df53968033bf99609e44f6 ,null,ru,null,null,null,null
Documentation:
Information from collection of Valery Khartchenko