Network tube radio receiver `` Neva-52 ''.
Tube radios.DomesticThe network tube radio receiver "Neva-52" has been manufactured by the Leningrad Metalware Plant since the 2nd quarter of 1952. The radio receiver in a number of parameters exceeds the requirements of GOST for class 2 receivers, and in terms of the attenuation of the mirror channel and the drift of the local oscillator frequency, for class 1 receivers. It differs from the old model not only in its scheme and design, but also in its appearance. The increase in the dimensions of the rp box made it possible to raise the sound output in the low frequency region. As a result of the constructive revision of the entire receiver, its manufacturing technology was simplified, and its repair was facilitated, if necessary. The receiver has the following ranges: LW 150 ... 415 kHz, SV 520 ... 1600 kHz, 2 extended HF 11.4 ... 12 MHz, 9.1 ... 10 MHz and overview 3.95 ... 7, 5 MHz. Receiver sensitivity 50 μV. Selectivity on adjacent channels 34 dB. Attenuation of the mirror channel: at LW 60 dB, MW 50 dB and HF 25 dB. When the input voltage changes by 60 dB, the AGC provides an output voltage of 12 dB. The drift of the local oscillator frequency at the highest frequencies of each range in 5 minutes after switching on is no more than 1 kHz. The range of sound frequencies reproduced by the 5GD-8 loudspeaker is 60 ... 6000 Hz, at a rate of 100 ... 4000 Hz. Output power 4 watts. Power consumption from the network is 80 watts. The radio receiver is assembled on nine octal tubes: 6K3, 6A7, 6B8S, 6S5S, 6P3S, 6E5S, 5TS4S. Receiver dimensions 600x410x380mm. Weight 22 kg. On the back wall is written the "Neva" radio receiver of the sample or simply 1952, 1953, 1954. These are not new models, but all the same "Neva-52" radio receiver produced from the corresponding year.
