Pulse modulator triode GMI-42B in ceramic-metal design with an indirectly heated cathode and an external anode with forced air cooling is designed for switching pulse power in pulse modulators of stationary and mobile equipment. The cathode is indirectly heated oxide. Decoration - metal-ceramic. Cooling - forced air.

2. Anode voltage (constant) 2.5 kV.
3. Grid voltage negative 200 V.
4. Grid excess voltage in a pulse of 1.3 kV.
5. Anode current per pulse 30 A.
6. Durability, not less than 1000 hours.
7. Interelectrode capacitances:
– input 130 pF,
– output 25 pF,
– through passage no more than 2 pF.
8. Heating voltage 24.2-27.8 V.
9. Lamp bulb temperature 150 C.
10. Ambient operating temperature range
-65 to +100.

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