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The GI-13BM (GI-130M) triode is used in selfexcited oscillator circuits with no external feedback, operating in continuous-wave or pulsed mode with anode modulation in the decimetric wavelength range.

The triode is available in two variants differing in the type of cooling: the GI-13BM with a heat sink for forced air cooling and the GI-130M with no heat sink for other systems of cooling.

Cathode: indirectly heated, oxide-coated.
Envelope: metal-ceramic.
Cooling: forced air.
Height: 88.5 mm with heat sink, 63.7 mm with no heat sink.
Diameter: 46 mm with heat sink, 26.3 mm with no heat sink.
Mass: 120 g with heat sink, 60 g with no heat sink.

KP - cathode and heater; P - heater; C - grid; A - anode

Vibration loads:
frequencies, Hz 5-2,000
acceleration, m/s² 98
Multiple impacts with acceleration, m/s² 735
Ambient temperature, °C -60 to +100
Relative humidity at up to +40 °C, % 98

Electrical Parameters
Heater voltage, V 12.6
Heater current, A 0.6-0.7
Mutual conductance (at anode voltage 400 V, grid voltage change 0.5 V, anode current 15mA), mA/V 8-12
Penetration factor (at anode voltage change from 400-800 V, anode current 15 mA), % 0.7-1.5
Anode current (at anode voltage 400 V), mA 35-65
Interelectrode capacitance, pF:
input 9.5-12
output 0.16-0.25
transfer 2.45-2.95
Warm up time, s, at most 60
Output power in pulsed operation (at peak anode voltage 1.5 kV, wavelength 12.4 cm, pulse duration 3-7µs, 1 /duty factor 150-200), W, at least 110

Limit Operating Values
Heater voltage, V:
over 500 h in CW operation 10.5-11.5
over 200 h of CW operation 12-13.2
over 500 h of pulsed operation 12-13.2
Anode voltage:
DC, V 900
DC with cold cathode, kV 1
peak value (with pulse duration at most 5 µs), kV 4
Grid voltage, instantaneous value (with pulse duration at most 5 µs), V -150 to +80
Cathode current:
r.m.s. value, mA 150
peak value (with pulse duration at most 5 µs), A 3.5
Dissipation, W:
with forced cooling 80
with no forced cooling 20
grid 2
Cathode heating time, s, at least 45
Wavelength, cm, at least 9

Anode Characteristic Curves