Neva-52 1952
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The radio receiver network lamp "Neva-52" from the II quarter of 1952 was manufactured by the Leningrad Metalware Plant. The radio receiver in terms of a number of parameters exceeds the requirements of GOST on class 2 receivers, and on the weakening of the mirror channel and the frequency of the local oscillator, on class 1 receivers. It differs from the old model not only in its design and construction, but also in its appearance. An increase in the dimensions of the rp box made it possible to increase the sound efficiency in the low-frequency region. As a result of constructive processing of the entire receiver, its manufacturing technology was simplified, and, if necessary, its repair was facilitated. The receiver has the following ranges: DV 150 ... 415 kHz, CB 520 ... 1600 kHz, 2 stretched KV 11.4 ... 12 MHz, 9.1 ... 10 MHz and a survey 3.95 ... 7, 5 MHz. The sensitivity of the receiver is 50 µV. The adjacent channel selectivity is 34 dB. Weakening of the mirror channel: on DV 60 dB, CB 50 dB and KV 25 dB. When the input voltage changes by 60 dB, the AGC provides an output voltage of 12 dB. Leaving the frequency of the local oscillator at the highest frequencies of each band 5 minutes after switching on no more than 1 kHz. The range of sound frequencies reproduced by the 5GD-8 loudspeaker is 60 ... 6000 Hz, with a norm of 100 ... 4000 Hz. Output power 4 watts. Power consumption from the network 80 watts. The radio is assembled on nine octal lamps: 6К3, 6А7, 6Б8С, 6С5С, 6П3С, 6Е5С, 5Ц4С. Dimensions of the receiver 600x410x380mm. Weight 22 kg. On the back wall is written radio "Neva" sample or just 1952, 1953, 1954. These are not new models, but the same Neva-52 radio receiver, produced from the corresponding year.
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Information from collection of Valery Khartchenko