Pulsed modulator tetrode GMI-2B for operation as a modulator in circuits with a partial discharge of storage capacitance. Decoration - glass, with a plinth. Cooling - forced air 200 m3/h.

1. Filament current 17.5 ± 1.7 A.
2. The anode current in the pulse is not less than 90 A.
3. Anode current (average value) not less than 140 mA.
4. The current of the 1st grid is not more than 12 mA.
5. Current of the 2nd grid 45 ±15 mA.
6. Blocking voltage of the 1st grid (at Ia=1 mA) no more than 570 V.
7. Interelectrode capacitances:
– input 350 pF,
– output 120 pF,
– throughput no more than 10 pF.
8. Durability – not less than 400 hours.
9. Heating voltage 23.7 – 26.3 V.
10. Lamp bulb temperature 120 C.
11. Ambient operating temperature range
from -55 to +70 С.
12. Weight – 5.5 kg.

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