Nevskij (RG-5S) 1961
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The electric network lamp tube stereo "RG-5S" from the 1st quarter of 1960 was produced by the Leningrad Plant No. 779 SME, PO Box 487. The stereophonic "RG-5C" stereo has a design and circuit similar to the RG-4S Yubileiny model. In the electrical circuit the nominal values "‹"‹of some parts and the rectifier circuit are changed. Rated output power 2x2 watts. Frequency range 100 ... 10000 Hz. Power consumption 70 watts. Mass and dimensions as RG-4C. Since 1964, the microphone was produced under the name "Nevsky" with the mention that this is the same "RG-5S" microphone.
Documentation:
Information from collection of Valery Khartchenko