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Электронные лампы
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   Яндекс.Метрика


ГУ-84Б


TETRODE
The GU-84B tetrode is used for power amplification in traveling-wave and single-sideband signal amplifier circuits and as power amplifiers in RF equipment.
GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: metal ceramic.
Cooling: forced air.
Height: at most 112 mm.
Diameter: at most 99 mm.
Mass: at most 1.3 kg.
OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz ........... 1-80
acceleration, m/s2 ................ 49
Multiple impacts with acceleration, m/s2 ............. 147
Ambient temperature, °С ................. -10to+70
Relative humidity at up to +35 °C,% .................... 98
BASIC DATA Electrical Parameters
Heater voltage, V ........... 27
Heater current, A ............. 3.4-4.0
Negative bias voltage (at anode voltage 750 V, grid 2 voltage 375 V, anode current 2000 mA), absolute value, V ........ 10-50
Grid 1 cutoff voltage (at anode voltage 2000 V, grid 2 voltage 375 V, anode current 20 mA, anode resistance 0.5 k), absolute value, V, at most ............. 150
Zero anode current (at anode voltage 250 V, grid 2 voltage 375 V, grid 1 voltage 0), A ........ >3.5-6
Grid 1 reverse current (at anode voltage 1000 V, grid 2 voltage 375 V, anode current 2000 mA) mА, at most ........ 80
Grid 2 current (at anode voltage 750 V, grid 2 voltage 375 V, anode current 2000 mA), mA ............ -25 to +60
Mutual conductance (at anode voltage 750 V, grid 2 voltage 375 V, anode current 2000 mA), mA/V ............... 44-72
Output power under conditions of class AB, at frequencies 0.1-1 MHz (at anode voltage 2000 =EN>V, grid 2 voltage 375 V, grid 2 current at least 80 mA, absolute value), kW, at least ............... 1.5
Output power under conditions of class Вat frequency 250 MHz (at anode voltage 2000 V, grid 2 voltage 375 V, anode current 1500 mA, grid 2 current at least 60mA, grid 1 current at most 4mA), kW, at most ............. 1.2
Interelectrode capacitance, pF:
input ................ 90-115
output .................. 18-23
transfer, at most ................... 0.2
Limit Operating Values
Heater voltage (AC or DC), V ................ 25.6-28.4
Anode voltage, kV:
DC .................. 2.2
instantaneous value ................. 4.25
Grid voltage (DC) V ............... 400
Negative grid 1 voltage (DC), absolute value,V ............... 150
Inputvoltage (amplitude value), V ................ 150
Cathode-heater voltage (either polarity, absolute value), V ................ 100
Cathode current, A:
DC component ............. 2
instantaneous value ............. 6

   



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