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4CX250B  /  7203               

Description:

The 4CX250B  /  7203 Vacuum tube is a radial beam tetrode with a plate dissipation of 250 Watts.

Electrical specifications for the  4CX250B  /  7203  Vacuum tube:

Filament                                                                   Oxide coated

Voltage                                                                           6 Volts

Current                                                                       2.6 Amps

Amplification factor                                                              5

Plate Dissipation                                                           250 Watts

Grid Dissipation                                                           2 watts

Maximum frequency for full rating CW                           500 MHz

Capacitance Grounded Cathode connection:

Input                                                                                    15.7 pf

Output                                                                                 4.5 pf

Feedback                                                                           .04 pf

 Mechanical specifications for the 4CX250B  /  7203 Vacuum tube:

Cooling                                                                      Forced air

Base                                                                          9 pin

Length                                                                       2.46 in.

Diameter                                                                   1.64 in.

Weight                                                                       4 oz.

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Revised: March 15, 2007