Universal tape recorder `` MAG-2A ''.
Tape recorders and radio tape recorders.The MAG-2A universal tape recorder has been produced since the 3rd quarter of 1948. VNIIZ, together with the experimental plant of the All-Union Radio Committee, based on the MAG-2 tape recorder, developed the MAG-2A tape recorder, in which, due to the refusal to rewind the film, the LPM was simplified. The tape recorder "MAG-2A" is intended for recording phonograms on a standard ferromagnetic tape, mainly speech programs and playing them through an external loudspeaker. The signal can be simultaneously fed into the line for subsequent playback through the broadcast path. The tape recorder allows you to record from a dynamic microphone, line, radio receiver and adapter. The device is adapted for work in stationary and field conditions. Mains powered via a separate power supply unit. The demagnetization of the magnetic tape and the bias for the recording head are carried out with a high frequency current. Operating frequency band 70 ... 7000 Hz, with deviations of ± 2.5 dB. Distortion factor (400 Hz) 4%. The noise level in relation to the nominal voltage on the LV is -38 dB. The belt speed is 45.6 cm / sec. Sound recording time 12 min.