Network tube radio receiver `` Baku ''.
Tube radios.DomesticSince 1951, the "Baku" network tube radio receiver has been produced by the Baku Radio Plant. The 2nd class radio receiver `` Baku '', produced from 1951 to 1955 by the Ministry of Local Industry of the Azerbaijan SSR, is a superheterodyne with 6 lamps: 6A7, 6K3, 6G2, 6P3S, 6E5S, 5TS4S. Frequency ranges: DV 150 ... 425 kHz, SV 510 ... 1630 kHz, KV1 3.95 ... 8 MHz, KV2 9.1 ... 12.4 MHz. IF 465 kHz. Sensitivity 300 μV on all ranges. Selectivity for adjacent channels 26 dB, mirror, for LW 36 dB, SV 30 dB, HF 12 dB. Output power 1.5 watts. The frequency range on the DM-2 loudspeaker is 100 ... 4000 Hz. There are jacks for an external speaker with a transformer, for example, a broadcast speaker. The sensitivity from the adapter is 250 mV. Power consumption from the network is 70 watts. There are 2 control knobs and both are combined. Left volume, power on and treble tone, right setting and range switch. The chassis is steel and coated with aluminum paint. The case is wooden, covered with walnut (birch) plywood, polished and covered with colorless varnish. The dimensions of the receiver are 690x370x270 mm, its weight is 15 kg. The scale with a subscale and a lighting device is made as a separate unit and is attached to the body. The scale has 5 lines, 4 correspond to ranges, graduated in meters, kHz and MHz. 5th, subdivided into 100 divisions. Light range indicator, where five lamps switch when moving from one range to another.
