ISO9000 Electron tube TB4/1250 Electron tube -

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Jinzhou Huaguang Electron Tubes Co., Ltd.  

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ISO9000 Electron tube TB4/1250 Electron tube

ISO9000 Electron tube TB4/1250 Electron tube
  • ISO9000 Electron tube TB4/1250 Electron tube
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     Electron tube is a rugged high-mu power triode, designed with beam-forming cathode and control grid geometry to allow the simplicity of design and circuit advantages of a triode with the gain of a tetrode. The tube is intended for pulse modulator or pulse regulator service. The external anode may be forced-air cooled. Or, for increased high voltage holdoff, the tube may be immersed in an insulating liquid, which is also used to cool the tube. This tube may be used in a grid or plate pulsed RF application where the high peak power is required.

Product Details


type : glass-metal triode
Package Type : Surface Mount
weight : 0.42kgs
Model Number : TB4-1250
Brand Name : HUAGUANG


Quick Details

  • Place of Origin: Liaoning, China (Mainland)
  • Brand Name: HUAGUANG
  • Model Number: TB4-1250
  • Type: Triode Transistor
  • Package Type: Surface Mount
  • weight: 0.42kgs
  • type: glass-metal triode


1.ISO9001:2008& CE
2.power tubes 
3.Anode cooled natural 
4.Glass-metal triode 

Electrical parameters
Filament voltage: 10V
Filament current: 9.9A
The maximum instantaneous filament current: 15A
Magnification factor: 28
Transconductance: 4.5mA / V
Electrode capacitance:
Anode - the GRID: 8pF
Cathode - the GRID: 11pF
Anode - Cathode: ≤ 0.35pF
Mechanical properties:
Weight: 0.42Kg
Installation: vertical, anode terminals up
Cooling: cooling
Shell and tube maximum temperature: 225 ° C
Sealing at the highest temperature: 220 °C
Leads to the end of the maximum temperature of 180 °C
Maximum ratings

The maximum anode DC voltage: 4KV
Maximum Anode DC Current: 535mA
Maximum GRID DC current: 115mA
Maximum anode dissipation power: 450W
Maximum GRID power dissipation: 50W
Maximum anode input power: 2.2KW
In typical operation: class C telegraph
Filament voltage: 10V
Anode DC voltage: 4KV
GRID DC bias voltage:-350V
Anode DC Current: 535mA
GRID DC current: 115mA
Anode output power: 1.69KW
Note: generally under matched load can be naturally cooled, but the equipment must be well ventilated, if in a non-matched load, high pressure, high-frequency conditions required for forced air cooling, ventilation should be through the outlet from the tube at the bottom of under the previous air.

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