GMI-14B modulating pulse tetrode is intended for switching pulse power in radio equipment.

Technical characteristics of GMI-14B:
The glow voltage is 26 V.
The glow current is from 1.5 A to 1.7 A.

 The anode current in the GMI-14B pulse at anode voltage of 3.5 kV, the voltage of the second grid is 2.15 kV, the displacement of the first grid is 0.9 kV and the excess of the first grid in the pulse of 350 V is at least 130 A.

 The grid current in the tetrode pulse at anode voltage of 3.5 kV, the voltage of the second grid is 2.15 kV, the displacement of the first grid is 0.9 kV and the first grid is exceeded in a 350 V pulse:

- the first grid - no more than 22 A;

- second grid - no more than 15 A.
The reverse current of the first grid of GMI-14B tetrodes is not more than 350 μA.
The blocking voltage is negative at an anode voltage of 36 kV, a second grid voltage of 2 kV and an anode current of 1.5 mA - 1 kV.
Interelectrode capacitance:
- input - no more than 220 pF;
- output - no more than 35 pF;
- pass-through - no more than 2 pF.
The cathode is an oxide of indirect heat.
The design of the lamp GMI-14B is glass-metal.
Cooling - forced air.
Maximum operating limits:

- glow voltage - from 23.5 V to 28.5 V;
- the highest voltage of the anode (constant) - 36 kV;
- the highest voltage of the second grid is 2.15 kV;
- the largest bias voltage of the first grid - (-1) kV;
- the highest voltage exceeding the first grid GMI-14B - 350 V;
- the highest cathode current in the pulse is 165 A;
- the maximum pulse duration is 10 μs;
- the shortest readiness time - 240 s;
- the lowest duty cycle - 1000;
- the highest cylinder temperature - + 120 ° C.

 The dissipated maximum power of GMI-14B:
- anode - 600 W;
- the second grid - 35 W;
- the first grid - 6 watts.

Dimensions:
- height - no more than 235 mm;
- diameter - no more than 148 mm.

Weight - no more than 2.8 kg.

 Terms of Use:

Ambient temperature - from -60 ° С to + 250 ° С.
Relative humidity at + 35 ° С - up to 98%.

 Vibration load:
- frequency range - from 1 Hz to 200 Hz;
- acceleration - 98 m / s2.

Acceleration of multiple shock loads - 392 m / s2.

The content of precious metals:

Gold: 3,522,106 grams.
Silver: 5.341283 grams.
Platinum: 0.043 grams.