SG-1 1950
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The subscriber loudspeaker "SG-1" (Siberia) has been produced since 1950. ,86e6f450b8cc469628ba70bf2947b049 The subscriber loudspeaker "SG-1" (Rural loudspeaker - 1) differs from all the others in its labyrinth design. ,86e6f450b8cc469628ba70bf2947b049 Due to this, the sensitivity of the loudspeaker is increased and a power input of 40 mW is required for normal operation, whereas a power of 150 ... 250 mW is required for conventional subscriber loudspeakers. ,86e6f450b8cc469628ba70bf2947b049 The loudspeaker "SG-1" is designed for a voltage in a radio line of 30 V. The operating frequency range is 200 ... 5000 Hz. ,86e6f450b8cc469628ba70bf2947b049 Uneven frequency response 20 dB. ,86e6f450b8cc469628ba70bf2947b049 Average sound pressure 3.2 bar. ,86e6f450b8cc469628ba70bf2947b049 Harmonic distortion 15%. ,86e6f450b8cc469628ba70bf2947b049 Loudspeaker type 1GD-1. ,86e6f450b8cc469628ba70bf2947b049 ,null,ru,null,null,null,null
Information from collection of Valery Khartchenko