4CW10,000A/8661

Suggested for general use as:
  • An oscillator
  • An amplifier 
  • A modulator

A pair of these tubes will deliver more than 30 kW of audio output. 


 

Description
Maximum Ratings
Tube Numbering System
Warranty

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Description

Plate Dissipation ( Max ) 12,00 watts
Screen Disspation ( Max.) 250 watts
Grid Dissipation ( Max ) 75 watts
Frequency for Max Ratings (CW) 110 MHz
Cooling Water and Forced Air
Filament Thoriated Tungsten
     Voltage 7.5 volts
     Current 75 amperes
Capacitances ( Gnd. Cath. Connection )
     Input 115 pF
     Output 20.5 pF
     Feed-through 1.0 pF
Capacitances ( Gnd. Grid Connection )
     Input 53.0 pF
     Output 20.5 pF
     Feed-through .16 pF
Amplification Factor   4.5
Base Special Coaxial
Recommended Air-System Socket SK-300 Family
Maximum Seal & Anode Core Temperature 250o C
Maximum Length 11.44 in /  29.06cm
Maximum Diameter 4.66 in / 11.84 cm
Weight ( approximate ) 7.5 lb /3.4 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 to 30 MHz 7,500 3.0 7,500 500 2.8 150 16,000
C RF Amplifier to 110MHz 6,500 2.6 - - - - -
C RF Amplifier Plate Modulated 5,000 2.5 5,000 500 2.4 120 8,500
AB RF Linear Amplifier 7.500 4.0 7.500 1500 3.33 - 15,950
AB AF Amplifier or Modulator ( two tubes ) 7,500 4.0 7,500 1500 6.66 - 31,900

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