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Since January, 1941, the Alexandrovsky Radio Plant No. 3 NKS has been producing the radio tube network lamp "10N-15" (SVD-10). Radio "10H-15" (10-tube, tabletop, 15th version of the design) was originally referred to as "SVD-10". The radio receiver is built according to the superheterodyne scheme and works in 3 ranges: D - Long waves (715 ... 2000 m), C - Medium waves (200 ... 577 m) and K - Short waves (15.8 ... 50 m) and has a sensitivity of 300 ... 500 µV on all bands, the selectivity on the adjacent channel is about 30 dB in the LW, ST bands and 20 dB in the HF bands. Rated undistorted amplifier output power 5, maximum 6.5 watts. The body of the radio is made of fine wood and polished. From January to March 1941, 500 10N-15 radio receivers were released. The release of the radio continued until mid-1941 and was discontinued due to the start of the war.