4CW25-000A Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – RF amplifier

4CW25,000A
The 4CW25,000A is a tetrode intended for use in
audio or radio frequency applications. It is recom-
mended for RF linear power amplifier service for
television linear amplifier service, and as a switch
tube for pulsed regulator service.
Characteristics
Plate Dissipation (Max.)
Screen Dissipation (Max.)
Grid Dissipation (Max.)
Frequency for Max. rating (CW)
Amplification Factor
Filament/Cathode
Voltage
Current
Capacitance
Input
Output
Feedthrough
Capacitance
Input
Output
Feedthrough
Cooling
Base
Air Socket
Air Chimney
Boiler
Length
Diameter
Weight
25,000 Watts
450 Watts
20 Watts
110 MHz
4.5
Thoriated Tungsten
6.3 Volts
160 Amps
Grounded Cathode
160 pf
24.5 pf
1.5 pf
Grounded Grid
67 pf
25.5 pf
0.2 pf
Water and Forced Air
Special Coaxial
SK-300A
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12.69 in; 322.00 mm
4.75 in; 121.00 mm
13.5 lb; 6.1 kg
Class of
Operation
C
C
AB1
AB1
Maximum Ratings
Typical Operation
Type of Service
RF amplifier
RF amplifier plate modulated
RF linear amplifier
AF amplifier or modulator
Plate
Voltage
(Volts)
Plate
Current
(Amps)
10,000
5.0
8,000
4.0
10,000
6.0
10,000
6.0
Plate
Voltage
(Volts)
Screen
Voltage
(Volts)
Plate
Current
(Amps)
Drive Output
Power Power
(Watts) (kiloWatts)
10,000
750
4.5
220
36.5
8,000
750
3.6
150
23.5
10,000 1,500
4.2
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28.5
10,000 1,500
8.5
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57.0
The values listed above represent specified limits for the product and are subject to change. The data should be used for basic
information only. Formal, controlled specifications may be obtained from CPI for use in equipment design.
For information on this and other CPI products, visit our website at: www.cpii.com,
or contact: CPI MPP Division, Eimac Operations, 607 Hansen Way, Palo Alto, CA 94303
telephone: [phone]. fax: [phone] | email: [e-mail]