Portable radio receiver "Signal".
Portable radio receivers and radios on p / p.DomesticSince 1964, the portable radio receiver "Signal" has been produced by the Kamensk-Uralsky Instrument-Making Plant in a limited series. The "Signal" radio receiver is built according to a superheterodyne circuit with 7 transistors. In terms of the electrical circuit, it is similar to the Neiva and Jupiter radio receivers, differing in external design, built-in clock, which, in addition to the clock function, allow you to automatically turn on the receiver at a given time. The "Signal" radio receiver has the LW and SV bands. Receiver sensitivity in the LW range - 1.5 mV / m, CB - 0.8 mV / m. Selectivity on the adjacent channel at 10 kHz detuning in the LW ranges - 24 dB, MW - 20 dB, specular - 30 dB. When the signal at the input changes 20 times due to AGC, the voltage at the ULF input changes 2 times. Power is supplied from a Krona battery. Loudspeaker 0.1GD-12. You can connect a TM-4 phone to the receiver, and the loudspeaker is turned off. There is a jack for an external antenna. The rated output power of 60 mW is maintained when the power is reduced to 7.2 V. The quiescent current does not exceed 4 mA. The dimensions of the receiver are 121x77x36 mm. Weight 400 gr. Includes leather case. The price of the receiver is 36 rubles 83 kopecks.