Portable cassette recorder "Ritm-301".
Cassette tape recorders, portable.The portable cassette recorder "Ritm-301" has been produced by the Perm Electrical Appliance Plant since 1976. The tape recorder is created on the basis of the "Spring-306" model and is intended for recording phonograms on magnetic tape from a microphone, receiver, radio broadcasting network, TV and their playback on an internal loudspeaker. The speed of the magnetic tape is 4.76 and 2.38 cm / s. Operating frequency band at a speed of 4.76 cm / s - 63 ... 10000 Hz, 2.38 cm / s - 63 ... 5000 Hz. The relative noise level in the recording and playback channel is 42-44 dB. Nonlinear distortion factor 4 ... 4.5%. Knock coefficient 0.35 ... 1.5%. The frequency of the bias current is 45 kHz. Power supply for six A-373 elements or power grid. Rated output power 0.5 W, maximum 2 W. The tone control range is 10 dB. Power consumption from the network is 7 W. The time of continuous operation of the tape recorder from a fresh set of batteries is about 10 hours. The dimensions of the tape recorder are 244.5x251.5x72 mm. Weight 3.6 kg.
