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Radio receivers of the Radiolina series have been produced since 1924 by an electric trust of low-current factories. "Radiolina" - a mass domestic tube radio receiver set of the French development. It is a radio installation consisting of two, three or four blocks. The main unit contained the radio itself with a tuned circuit, and an overlapping range of 450 ... 3400 meters. This radio receiver was of various types (P-1, P-2, LR-1, and depending on it the unit was called Radiolina, Radiolina No. 1, or Radiolina No. 2. The detector unit was attached to the receiver and / or two or three-lamp low-frequency amplifier unit.When a very loud reception was required, a power amplifier unit was added.When receiving powerful or long-range radio stations, the settings could be used as detector or regenerative ones.The anodic and filament circuits of the lamps were powered by batteries, consuming a current of about 0.7 A . Into the receiving set An electromagnetic horn loudspeaker of the type "DP", "Record", or a foreign speaker walked in. By the end of 1924, there were about 20,000 radio receivers in Russia, half of which were in Moscow. 5% of the receivers were in tubes. 5 thousand copies of the detector and about 600 lamp receivers Radiolina. For more information about the "Radiolines" in the information below from primary sources.