Stationary transistor radio receiver `` Ermak ''.
Radiols and receivers p / p stationary.DomesticSince the beginning of 1979, the stationary transistor radio receiver "Ermak" has been producing the Omsk Instrument-Making Plant named after Kozitsky. The table souvenir "Ermak" with the coats of arms of the city of Omsk is a direct amplification radio receiver that operates in the long (LW) and medium (MW) wavebands. The souvenir can also be used as a short-term low-power lamp. The radio is assembled on nine germanium transistors. The "Ermak" souvenir has a switch for the type of work and a knob for tuning to broadcasting stations. There is no volume control in the souvenir. Ranges of received radio frequencies: long waves 145 ... 700 kHz, medium waves 500 ... 1700 kHz. Selectivity for adjacent channels in the range of DV - 8..10 dB, CB - 6 ... 8 dB. Sensitivity to a magnetic antenna in the ranges DV, SV - 5..7 mV / m. Rated output power - 100 mW, maximum - 150 mW. The range of reproducible sound frequencies is 250 ... 5000 Hz, a sufficiently high-quality sound that is somewhat spoiled by the location of the loudspeaker on the back wall of the souvenir, with the sound pressure output to the same place. Power is supplied from a battery of the "KBS-L" type, voltage - 4.5 V. In 1988, the electric circuit of the souvenir was transferred to silicon transistors in the same quantity. The technical characteristics of the receiver are the same.
