,Cathode Ray Tubes,Ceramic Tubes,CFA,chemical synthesis,chromenes,CO2 sensors,Communication,composite membranes,condensed heterocycles,Control Tubes,CWT,database,Devices,Diodes,Discharger,Display Tubes,Electron Tubes,Electron,antitumor,artificial organs,artificial skin,Attenuators,Audio tubes,Backward Wave Oscillator,Band filtering,Beam tubes,biocompatibility,biomaterials,biosensors,Broadcast,Broadcasting Tubes,Broadcasting,carbon dioxide isolation3CX300A1,4CX400A,4CX800A,4X150A,6360,6BK4,6BQ7.6C19,6C33C,6D22S,6N1P,6S19P,7034,813,829A,832A,833A,absorbent,Acquisition,Aircraft,Amateur Radio,Amateur,Amplifiers,Antenna amplifiers,anticancer compounds,antitumor agent,Broadcast Tubes,Transmitting Tubes,Transmitting,Broadcast,Russia,component,Navigator,product,characteristics,tube,technical,information,diagram">

GU-43 B

TETRODE

The GU-43B tetrode is used for continuous operation at frequencies up to 100 MHz in separately- or self-excited oscillator circuits and as linear power amplifiers in RF equipment

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: glass-to-metal.
Cooling: forced air.
Height: at most 125 mm.
Diameter: at most 100 mm.
Mass: at most 1.5 kg

gu-43b(1)1.jpg

OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz 10-200
acceleration, m/s² 59
frequencies, Hz 200-600
acceleration, m/s² 20
Multiple impacts with acceleration, m/s² 343
Linear leads with acceleration, m/s² 147
Relative humidity at up to +40 °C, % 98

BASIC DATA
Electrical Parameters
Heater voltage, V 12.6
Heater current, A 6-7.2
Mutual conductance (at anode voltage 1 kV, grid 2 voltage 350 V, anode current 1 A, grid 1 voltage change ±2.5 V), mA/V 40-50
Negative bias voltage (at anode voltage 1 kV, grid 2 voltage 350 V, anode current 1 A),V 20-30
Interelectrode capacitance, pF:
input 80-100
output 10-18
transfer, at most 0.1
Cathode heating time, s, at most 180
Output power (at anode voltage 3 kV, grid 2 voltage 350 V, anode current 0.9 A), kW, at least 1.6
Output power over 1,000 h of service, kW, at least 1.3

Limit Operating Values
Heater voltage, V 11.3-13.9
Anode voltage, kV 3.3
Grid 2 voltage, V 500
Negative grid 1 voltage, V 200
Cathode current, A:
DC component 1
peak value 3.2
Dissipation, W:
anode 1,000
grid 2 28
grid 1 5
Temperature at seals, °C 150

gu-43b(2)1.jpg
Averaged Anode Characteristic Curves:
Uf = 12.6V; Ug2 = 350V;
Pa max

gu-43b(2)2.jpg
Averaged Anode-Grid Characteristic Curves:
Uf = 12.6V; Ug2 = 350V

gu-43b(2)3.jpg
Averaged Grid 2-Anode Characteristic Curves:
Uf = 12.6V; Ug2 = 350V