Pulse modulator tetrode GMI-83V (ГМИ-83B) is a variant of GMI-83 tube with improved reliability. Maximum anode dissipation is 60W. Maximum anode current: 15A. Max. height of the tube: 146,5 mm. Max. diameter: 65 mm. Weight of the whole box: about 400g. New in box tubes, directly from the old reserves. Year of production: 1986 (please look at the gallery pictures).