The portable reel-to-reel tape recorders "Dolphin" and "Dolphin-2" have been produced since 1969 and 1970 by the "Fiolent" plant in Simferopol.
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The Dolphin tape recorder is designed for two-track recording of phonograms from a microphone, a pickup and a radio line.
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LPM speed - 9.53 cm / sec.
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Recording time using reels for 170 meters of tape type 10 - 2x60 minutes.
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Detonation coefficient 0.4%.
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The sensitivity from a microphone is 0.5 mV, a pickup is 500 mV, a radio line is 30 V. Rated output power is 0.8 W.
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The operating frequency range at the linear output is 63 ... 10000 Hz.
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On the loudspeaker 100 ... 10000 Hz.
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Noise level -42 dB.
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The range of treble tone control is 15 dB.
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Power supply from 8 A-373 elements or from an alternating current network of 127 or 220 V through a remote power supply unit.
,86e6f450b8cc469628ba70bf2947b049
The power consumption from the network is 12 W.
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Dimensions of the model are 365Ñ…310Ñ…107 mm.
,86e6f450b8cc469628ba70bf2947b049
Weight without batteries 5.6 kg.
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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.
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The recording duration at a speed of 4.76 cm / sec is 2x120 minutes.
,86e6f450b8cc469628ba70bf2947b049
The frequency range at a lower speed is 63 ... 6300 Hz.
,86e6f450b8cc469628ba70bf2947b049
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