The three-program receiver "Orpheus-304" has been produced by the Leningrad plant "Plastpribor" since the beginning of 1986. ,86e6f450b8cc469628ba70bf2947b049`` Orpheus-304 '' three-program receiver of the 3rd complexity group, designed for receiving and playing back programs transmitted over a compacted three-program wire broadcasting network with a nominal voltage of the low-frequency path of 30 or 15 V, powered from an alternating current network with a frequency of 50 Hz and ,86e6f450b8cc469628ba70bf2947b049voltage of 220 V. In the PT, a push-button method of selecting programs is used, which allows you to switch it to the desired program by pressing the button corresponding to the program number: 1st program - receiving a low-frequency signal of an audio frequency (with and without amplification); ,86e6f450b8cc469628ba70bf2947b0492nd and 3rd programs reception of HF - AM signals with carrier frequencies of 78 or 120 kHz. ,86e6f450b8cc469628ba70bf2947b049The PT has output jacks for an additional loudspeaker with an impedance of at least 25 ohms, which can also be used for recording programs on a tape recorder. ,86e6f450b8cc469628ba70bf2947b049Sound pressure frequency range (on all channels) 160 ... 6300 Hz. ,86e6f450b8cc469628ba70bf2947b049Harmonic distortion at a frequency of 160 Hz for electrical voltage is not more than 5%. ,86e6f450b8cc469628ba70bf2947b049The rated output power of the ULF is not less than 150 mW. ,86e6f450b8cc469628ba70bf2947b049The nominal output voltage is 1 V. The non-uniformity of the frequency response in terms of electric voltage is not more than 10 dB. ,86e6f450b8cc469628ba70bf2947b049Power consumed from the mains is not more than 4 W. ,86e6f450b8cc469628ba70bf2947b049The overall dimensions of the PT are 100x160x282 mm. ,86e6f450b8cc469628ba70bf2947b049Weight 1.7 kg.,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null