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GI-41-1

TRIODE

The GI-41-1 triode generates and amplifies oscillations at frequencies up to 3,000 MHz in high-duty factor pulsed operation in groundedgrid circuits.

GENERAL
Cathode: indirectly heated, oxide-coated dispenser.
Envelope: titanium-ceramic.
Height: at most 45 mm.
Diameter: at most 25.8 mm.
Mass: at most 30 g.

gi-41-1(1)00021.jpg

OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz 1-1,000
acceleration, m/s² 98
Multiple impacts:
acceleration, m/s² 1,470
impact duration, ms 10
Single impact:
acceleration, m/s² 4,900
impact duration, ms 10
Ambient temperature, °C -65 to +125
Relative humidity at +40 °C, % 95-98

BASIC DATA
Electrical Parameters
Heater voltage (AC or DC), V 6.3
Heater current, A 1.2-1.5
Mutual conductance, mA/V, at least 23
Gain coefficient (at anode voltage 450 V and anode current 50 mA) 60-140
Warm up time (at peak anode voltage 3.2 kV, peak anode current 2.8 A, 1/duty factor 200, pulse duration 1.5 µs, wavelength 10cm), s, at most 60
Output power (at peak anode voltage 3.2 kV, peak anode current 2.8 A, 1 /duty factor 200, pulse duration 1.5 µs, wavelength 10 cm), kW, at least 1.8
Interelectrode capacitance, pF:
input 6-8
output 0.05
transfer 2.35-2.65

Limit Operating Values
Heater voltage (AC or DC), V 6-6.6
Peak anode voltage, kV 3.2
Anode voltage (DC), kV:
in cathode keying mode 2.35
with no anode current 2.4
Negative bias voltage, V 200
Dissipation (average value), W:
anode 40
grid 0.8
Peak drive power, W 350
Minimum output power, kW:
at wavelength 10 cm 1.8
at wavelength 18 cm with cathode keying 2
Peak anode current, A:
with anode keying 2.9
with cathode keying 2.7
Minimum 1/duty factor 200
Maximum pulse duration, µs 1.5
Temperature at leads, °C 200

gi-41-1(3)00041.jpg
Averaged Peak Characteristic Curves:
Uf = 6.3V; t = 1µs; pulse frequency 1,000 Hz;
_____ anode;
_ _ _ anode-grid

gi-41-1(3)00042.jpg
Averaged Peak Characteristic Curves:
Uf = 6.3V; t = 1µs; pulse frequency 1,000 Hz;
_____ anode;
- - - grid

gi-41-1(3)00043.jpg
Averaged Dynamic Characteristic Curves at Cathode Modulation:
Uf = 6.3V; t = 1.5µs; T = 200; generation frequency 1,600MHz

gi-41-1(4)00051.jpg
Averaged Dynamic Characteristic Curves at Anode Modulation:
Uf = 6.3V; t = 1.5µs; T = 200; generation frequency 3,000 MHz