3cW40,000a5
chaRacteRistics
Plate Dissipation (Max.)
Screen Dissipation (Max.)
Grid Dissipation (Max.)
Frequency for Max. rating (CW)
Amplification Factor
Filament/Cathode
Voltage
The 3CW40,000A5 is a medium-mu power triode
designed primarily for use as an RF power ampli-
fier. Input of 100 kW is permissible up to 90 MHz.
Plentiful reserve emission is available from its
1500 watt filament. The grid structure is rated at
1000 watts dissipation. The electrical character-
istics of the 3CW40,000A5 closely match those of
the Siemens RS-2021W and it is therefore ideal as
a retrofit.
40,000 Watts
---
1,000 Watts
90 MHz
55
Thoriated Tungsten
12.0 Volts
120 Amps
Grounded Cathode
70.0 pf
Current
Capacitance
Input
Output
2.3 pf
Feedthrough
Capacitance
Input
43 pf
---
--- pf
Output
--- pf
Feedthrough
Cooling
--- pf
Water and Forced Air
Special Coaxial
SK-1300
Base
Air Socket
Air Chimney
Boiler
---
---
Length
12.0 in; 304.8 mm
6.75 in; 171.5 mm
17.0 lb; 7.7 kg
Diameter
Weight
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10,000ꢀ
---ꢀ
7.0ꢀ 800ꢀ 60.0
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.
Forꢀꢇꢊformꢂꢉꢇoꢊꢀon this and other CPI products, visit our website at:ꢀwww.ꢈꢅꢇꢇ.ꢈom,
or contact: CPI MPP Division, Eimac Operations, 607 Hansen Way, Palo Alto, CA 94303
telephone: 1(800) 414-8823. fax: (650) 592-9988 | email: powergrid@cpii.com