Vintage 1980 Soviet Russian Radio ALPINIST-417. Testing, sirfing throw ether at MW AM
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Since 1980, the Alpinist-417 portable radio receiver has been produced by the Voronezh Radio Plant. Portable transistor radios "Alpinist-417" and "Alpinist-418" are identical in electrical circuit and design, and differ only in the different design of the loudspeaker grille, as well as the presence of a built-in power supply from the electrical network in the described "417" model. Receivers work in the LW and MW bands. Powered by six 343 cells or two 3336L batteries and mains power in the "417" model. The nominal output power of the amplifier is 0.4 W. The band of reproducible sound frequencies is 200...3550 Hz. Receiver dimensions 261x162x76 mm. Weight "417" model 1.7 kg. The price of the radio ''Alpinist-417'' is 38 rubles. In 1981, changes were made to the Alpinist-417 radio receiver circuit.