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The three-program receiver "Lighthouse" since 1970 produced the Lianozovsky EMZ.
The PT is designed to receive any of the three programs transmitted over a compacted wired broadcast system.
The rated output power of the first low-frequency program is 0.25 W, the second and third are 0.15 watts.
The average sound pressure is 0.25 Pa.
The range of reproduced frequencies is 1000 ... 6300 Hz.
Frequency response unevenness - 15 dB.
The input electrical resistance of the 1st channel is 3600 Ohms, the remaining 4500 Ohms.
The coefficient of nonlinear distortion is 7%.
Dimensions PT - 330x200x110 mm, weight 2.9 kg.