This standard applies to generator lamps with a power dissipated by the anode in excess of 25 W, intended for operation at frequent
GOST 21106.3-1976 Referenced Document
GOST 21106.0-1975 Oscillator, modulator and regulation tubes anode dissipated power more than 25 W. Method of measurements of electrical parameters. General principles
GOST 21106.3-1976 history
1976GOST 21106.3-1976 Oscillator tubes with anode dissipation above 25 W. Method of electric strength test
1975GOST 21106.0-1975 Oscillator, modulator and regulation tubes anode dissipated power more than 25 W. Method of measurements of electrical parameters. General principles