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PRODUCT

  • Electron tube
  • Electron tube
Electron tube   4CX250B/7203

The 4CX250B/7203 is a forced-air cooled, 250-watt plate dissipation, external anode, and ceramic and metal radial beam tetrode. The superior construction of the 4CX250B makes it ideal for use as a grid driven RF amplifier or oscillator, or an AF power amplifier or

modulator. It is designed to operate with a heater voltage of 6.0volts.

Overview


GENERAL CHARACTERISTICS

Plate Dissipation (Max.)           

250 W

Screen Dissipation (Max.)         

12 W

Grid Dissipation (Max.)         

2 W

Frequency for Max. rating (CW)   

500 MHz

Amplification Factor                

5

Filament/Cathode Oxide Coated

Voltage

6.0 V

Current

2.6 A

Capacitance Grounded Cathode

Input

15.7 pf

Output

4.5 pf

Feedthrough

0.04 pf

Capacitance Grounded Grid

Input

13.0 pf

Output

4.5 pf

Feedthrough

0.01 pf

Cooling                            

Forced Air

Base                               

9 Pin Special

Recommend Air Socket          

SK-600A

Recommend Air Chimney            

SK-606

Boiler ---

Length               

2.46 in,  62.50 mm

Diameter             

1.64 in,  41.70 mm

Weight                

4 oz,    113 gm