Shortwave converter K-2.
Tube radios.DomesticSince the beginning of 1934, the K-2 short-wave converter has been produced by the Kazitsky Leningrad Plant. The K-2 converter is an auxiliary device that allows receiving short-wave radio stations operating in the range from 19 to 62 m to long-wave receivers: EKL-34, EKL-4, ECHS -4 '', '' ECHS-3 '', '' ECHS-2 '', '' SI-235 '' and others powered by 120 volt AC.