Since 1954, the network tube radio receiver "October" has been produced by the Leningrad Metalware Plant. ,86e6f450b8cc469628ba70bf2947b049The radio receiver is a nine-lamp superheterodyne of the 1st class operating in the ranges of DV, SV and 4 KV sub-bands KV-1 4 ... 6.3 MHz, KV-2 7 ... 7.4 MHz, KV-3 9, ,86e6f450b8cc469628ba70bf2947b0492 ... 10 MHz, KV-4 11.5 ... 12.1 MHz. ,86e6f450b8cc469628ba70bf2947b049Receiver sensitivity on all ranges 50 µV. ,86e6f450b8cc469628ba70bf2947b049Adjacent channel selectivity is about 60 dB. ,86e6f450b8cc469628ba70bf2947b049The speaker, which uses two 5-watt loudspeakers with different resonant frequencies, effectively reproduces the audio frequency range from 60 to 6500 Hz. ,86e6f450b8cc469628ba70bf2947b049High speaker output eliminates overload and improves sound quality. ,86e6f450b8cc469628ba70bf2947b049The maximum output power of the low frequency amplifier is 10 W. ,86e6f450b8cc469628ba70bf2947b049There is a tone switch block and filters to change the color of the sound. ,86e6f450b8cc469628ba70bf2947b049Band switching closes the speaker leads for quiet switching. ,86e6f450b8cc469628ba70bf2947b049In the high-frequency circuits, new small-sized armored carbonyl cores SB-1A with high quality factor and their small dimensions are used. ,86e6f450b8cc469628ba70bf2947b049The case is walnut veneered and polished. ,86e6f450b8cc469628ba70bf2947b049The Leningrad Metalware Plant produced the October radio receiver until June 1957, after which its documentation and production was transferred to the Radist Leningrad plant. ,86e6f450b8cc469628ba70bf2947b049The appearance of the radio receiver has been changed, and changes have been made to the design and circuitry.,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null