Transistor network electrophone '' Electronics B-1-02 ''.

Electric record players and electrophones on semiconductorsDomesticElectrophone "Elektronika B1-02" in 1976 prototype produced the Kazan plant of radio components. The EF is developed on the basis of the Electronika-B1-01 electroacoustic system and consists of a stereo amplifier, an electro-playing device and two external speakers located in one housing. Unlike the EAS '' Electronics-B1-01 '', the bass amplifier uses a seven-band tone block with separate tone control at frequencies: 40, 150, 400, 1000, 2500, 5000 and 15000 Hz in the range of + 10 / -10 dB. EPU as in the basic electrophone, but has an electronic hitchhiking. The microphone uses two external acoustic systems 20AC-3, each of which has loudspeakers: 2 LF 10GD-30, 2 MF 4GD-8E and 4 HF 3GD-31. The nominal output power of the microphone is 2x60 W at THD - 1%. The range of reproducible frequencies is 40 ... 18000 Hz. The detonation coefficient of the EPU is 0.1%. The dimensions of the EF are 620x405x200 mm, for one speaker - 680x430x220 mm, the weight is 20 and 40 kg, respectively.