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The transistor "Nocturn-212-stereo" network transistor microphone has been producing the Grozny Radio Engineering Plant since I-1981. The stereo audio of the 2nd group of the Nocturne-212 stereo complexity consists of a 3-speed 78, 45, 33 rev / min EPU with self-locking and microlift, as well as an amplifier with separate timbres for LF and HF, stereo balance control and push-button switch works. The low-frequency amplifier is loaded onto two speakers of the type 6AC-518. Along with the function of playing back recordings from records of all formats, the electrophone could be used as an amplifier for external signals. The maximum output power of the model 2x7 watts. The nominal frequency range is 40 ... 16000 Hz. The sensitivity of the amplifier with EPU and tape recorder is 0.2 ... 0.25 V, the broadcasting line is 10 ... 30 V. The harmonic coefficient is about 1.5%. The background level is -46 dB. The power consumption of 40 watts from the network. AU 8 ohm impedance. Dimensions of the main unit 405x345x160 mm. Weight 9 kg.