Detailed Product Description

The electron tube 3CX10000D3 is a forced air cooled,  coaxis structure ceramic-metal, medium-mu power triode containing a thoriated tungsten cathode, with maximum output power up 33kW as continuing operation and up 50kW as pulse operation. The tube is used mianly in industrial radio-frequecy heating service.
GENERAL  CHARACTERISTICS
Filament Voltage 5.8  V
Filament Current     145  A
Maximum Filament Impact Current  600  A
Interelectrode Capacitance
Grid Plate  21  pF
Grid Cathode     55  pF
Plate Cathode   1  pF
 Amplificaton  Factor  22
Transconductance (Va=10kV, Ia=4A) 50 mA/V
Maximum Operation Frequency  120  MHz
Operation Position  Vertical, base up or down
Cooling     Forced Air
Air flow      6  m3/min
Maximum In-coming Temprature   45
Maximum  Anode Core and Seal Temprature
    250
Maximum Diameter    204 mm
Appro. Weight  18 kg
MAXIMUM RATING ABSOLUTE #118alue
Operation Frequency 120  MHz
Plate Voltage
at 30MHz  12  kV
at 30~60MHz  9  kV
at 60~90MHz  7  kV
at 90~120MHz     6  kV
Plate Current (full load)     5  A
Grid Voltage (no load)   -1.5  A
Peak Cathode Current (CW)       40  kW
Peak Cathode Current (pulse)     750 W

Plate Dissipation     12 kW
Grid  Dissipation
at 30MHz  350  W
at 30~60MHz    320  W
at 60~90MHz    300  W
at 90~120MHz 280  W
TYPICAL OPERATION
Industrial High Frequency Oscillator
 -Class C at 30MHz
Plate Voltage 10      8  kV
Plate Current     4.3    4.8 A
Grid Bias     -640  -560  V
Grid Voltage     960   900  V
Grid Current (load)   0.53  0.72  A
Grid Dissipation     145  220  W
Grid Impedance    1210  790 Ω
Grid Dissipation 9.6   8.6  kW
Plate Input Power  40  38.4  kW
Plate Output Power  33  29  kW
Feedback Ratio  10.5  12.9 %
Oscillation Efficiency  76.5   76 %