Portable reel-to-reel tape recorders "Dolphin" and "Dolphin-2".
Reel-to-reel tape recorders, portable.Reel-to-reel tape recorders, portableFrom 1969 and 1970 the portable reel-to-reel tape recorders "Dolphin" and "Dolphin-2" were produced by the "Fiolent" plant in Simferopol. The Dolphin tape recorder is designed for two-track recording of phonograms from a microphone, a pickup and a radio line. LPM speed - 9.53 cm / sec. Recording time using reels for 170 meters of tape type 10 - 2x60 minutes. Detonation coefficient 0.4%. The sensitivity from the microphone is 0.5 mV, the pickup is 500 mV, the radio line is 30 V. The nominal output power is 0.8 W. The operating frequency range at the linear output is 63 ... 10000 Hz. On the loudspeaker 100 ... 10000 Hz. Noise level -42 dB. The range of treble tone control is 15 dB. Power supply from 8 elements A-373 or from an alternating current network of 127 or 220 V through a remote power supply unit Power consumption from the network is 12 W. Dimensions of the model are 365x310x107 mm. Weight without batteries 5.6 kg. The Dolphin-2 tape recorder differs from the Dolphin tape recorder with a second speed of 4.76 cm / s and a modified printed circuit board. The duration of the recording at a speed of 4.76 cm / sec is 2x120 minutes. The frequency range at a lower speed is 63 ... 6300 Hz.
