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Since 1953, the state-owned Union Electrotechnical Plant "Elfa" has produced a radio-gramophone network tube "UP-2".
'' Radiogrammophone '' is an apparatus that plays gramophone records without the aid of a radio receiver.
Devices that reproduce a recording using an amplifier of a radio receiver or an external amplifier were called electrophones, and later electric players.
Devices incorporating a power amplifier and speaker system - by electrophones.
The radio recorder `` UP-2 '' is assembled on 3 radio tubes, two of which 6Ð9С and 6П6С operate in the low-frequency amplifier, and the third 6Ц5С in a half-wave rectifier.
The bass amplifier is loaded on a 1GD-1 loudspeaker, giving it a nominal output power of 0.5 watts.
The speaker reproduces the frequency band from 150 to 6000 Hz.
The radio gramophone loses ordinary records at a speed of 78 rpm and long-playing at the same speed, but with a compacted micro-recording or long-playing, designed for a speed of 33 rpm.
The radiophone consumes 50 watts of power from the network.
Dimensions of the radiophone 398Ñ…294Ñ…168 mm.
Weight 10 kg.
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