The GU19 or ГУ-19 is a 40 watt dissipation dual tetrode designed for UHF applications. Full ratings to 500 MHz. Length = 3.50" Diameter = 1.50" Max voltage = 750 Max current = 280 ma Fil voltage = 6.3 or 12.6 Fil current = 1.5 or .75 amps GOTO INDEX