4CX7500A 

Created for use in VHF power amplifier service, and as a VHF TV linear amplifier. 

 

Description
Maximum Ratings
Tube Numbering System
Warranty

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Description

Plate Dissipation ( Max ) 7500 watts
Screen Dissipatoin ( Max.) 150 watts
Grid Dissipation ( Max ) 50 watts
Frequency for Max Ratings (CW) 220 watts
Cooling Forced Air
Filament Thoriated Tungsten Mesh
     Voltage 7.0 volts
     Current 110 amperes
Capacitances ( Gnd. Cath. Connection )
     Input 145.0 pF
     Output 20.0 pF
     Feed-through 0.53 pF
Capacitances ( Gnd. Grid Connection )
     Input 74.1 pF
     Output 20.6 pF
     Feed-through 0.07 pF
Amplification Factor 8
Base Special Coaxial
Recommended Air System Socket SK-340: SK-350
Recommended Air Chimney SK-346
Maximum Seal and Anode Core Temperature 250o C
Maximum Length 9.25 in / 235.46 mm
Maximum Diameter 5.66 in / 143.76 mm
Weight ( approximate ) 8.4 lb / 3.8 kg
Operating Position Vertical, base up or down

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Maximum Ratings Typical Operation
Class of Operation Type of Sevice Plate Voltage (volts) Plate Current (amps) Plate Voltage (volts) Screen Voltage (volts) Plate Current (amps) Drive Power (watts) Output Power (watts)
C  RF Amplifier   6500 3.0 6450 650 2.20 240 13,600
C RF Linear Amplifier 8000 2.5 7500 1250 2.25 - 10,000

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