Transistor radio `` Cosmonaut ''.

Portable radio receivers and radios on p / p.DomesticSince 1964, the Cosmonaut transistor radio receiver has been producing the Sputnik radio plant, mountains. Molodechno, Minsk region. A feature of the model is a low-voltage power supply, 4.5 V from 3 elements 373, and the receiver retains all its parameters, except for the output power when the battery voltage drops to 2.5 V. The radio receiver is assembled on 8 transistors and operates in the DV and SV ranges. The sensitivity is 1.2 and 0.8 mV / m, respectively. Adjacent channel selectivity 26 dB. The rated output power of the ULF on the 0.5GD-12 loudspeaker is not less than 150 mW, the maximum is 250 mW. The range of reproducible sound frequencies is 300 ... 3500 Hz. Quiescent current 10 mA. Receiver dimensions - 224x168x68 mm. Weight 1.7 kg. The radio receiver was created on the basis of the "Alpinist" receiver circuit with the addition of an inverter cascade and recalculation of the nominal values ​​of parts for 4.5 V. In those years, the appearance of this model, with the possibility of using it in stationary and portable modes, was an achievement for the USSR.