Network tube radio receiver "Salute".
Tube radios.DomesticThe Salyut tube network radio receiver was developed in 1949. The network radio "Salyut" is a direct amplification device assembled according to a reflex circuit on 2 radio tubes powered by a lighting network with a voltage of 127 or 220 volts. Ranges: long waves from 1935 to 750 m (frequencies 155 ... 400 kHz), medium waves from 575 to 260 m (frequencies 520 ... 1150 kHz). The nominal output power of the receiver is 0.5 W, with a nonlinear distortion of 10%. The sensitivity of the radio receiver is not less than 10 mV / m in the long wave range and not less than 15 mV / m in the medium wave range. The selectivity of the receiver is characterized by the attenuation of the signal of the interfering station, located in frequency from the received one at 50 kHz, not less than 10 times (by 20 dB) at long waves and at least 3 times (by 10 dB) in the range of medium waves. The frequency band passed by the entire path of the receiver, including the loudspeaker, covers frequencies from 200 to 4000 hertz with the uneven amplification of individual frequencies relative to the frequency of 400 hertz no more than 3 times. The sensitivity of the input for the pickup at a rated output power of at least 0.2 V. There is no evidence that the radio has been put into mass production.