Network tube radio receiver "SVD-9".
Tube radios.DomesticSince the beginning of 1938, the network tube radio receiver "SVD-9" has been producing the Alexandrovsky Radio Plant No. 3 NKS. During the production of the SVD series receivers, their electrical circuit has changed, and in accordance with it, the model name has also changed. The next modernization was named SVD-9. In 1940, the circular scale of the receiver was replaced with an oval one, and the electrical and wiring diagram was also partially modernized. The SVD-9 radio receiver is assembled on 9 lamps of types: 6K7, 6A8, 6X6, 6F5, 6L6, 5C4, 6E5. Ranges DV (A) 750-2000 m, SV (B) 200-556 m, KV (D) 85.7-33.3 m, KV (D) 36.6-16.7 m. Receiver sensitivity about 30 μV ... Intermediate frequency 445 kHz. The nominal output power of the amplifier of the receiver 3, maximum 7 watts. Sound frequency range 100 ... 4000 Hz. Power consumption from the network is 100 watts. The dimensions of the receiver are 560x360x290 mm. Weight 16 kg. The receiver is assembled in a case made of plywood and wood, varnished. The round, later oval scale of the receiver is protected by glass. In the center of the scale there is an emblem: a globe with a star, a sickle and a hammer, on an oval one - the logo of the Aleksandrovsky Radio Plant. Above the scale there is a tuning indicator with a visor. There are four control knobs. The first range switch (A-B-D-D), then setting and volume. Lower tone control and mains switch. Double adjustment knob with gear. Loudspeaker `` GME-1 '' with bias.
