thumb|TV set KVN-49 at Mosfilm museum (Moscow) KVN-49 () or Kenigson, Varshavskiy, Nikolayevskiy Mk. 1949 was a black-and-white TV set released in 1949 and on the market in the USSR until 1960, with some minor modifications. It was the first TV set ever mass-produced in the USSR.
thumb|TV set KVN-49 at Mosfilm museum (Moscow) KVN-49 () or Kenigson, Varshavskiy, Nikolayevskiy Mk. 1949 was a black-and-white TV set released in 1949 and on the market in the USSR until 1960, with some minor modifications. It was the first TV set ever mass-produced in the USSR.
==Specifications== Television tube - 18LK1B () with round mirror, without an ion trap Ray focusing and deviation by a magnetic field, 3 coils (rows forming, framing and focusing) Image size - 105х140 mm Aspect ratio - 4:3 Audio output - 1 W Additional equipment - plastic magnifying lens filled with distilled water or glycerol Power draw - 200 W (КВН-49-4), 216 (КВН-49-А and -Б) Dimensions - 380х490х400 mm Weight - 29 kg
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).