CPI 3CX2500A3

Input of 14 kW is permissible up to 110 MHz.
Plentiful reserve emission is available from its 386
watt filament. The grid structure is rated at 150
watts, making this tube an excellent choice for
industrial service.
Class of Operation
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
Maximum Ratings
Type of Service
Plate Voltage
(Volts)
Plate
Current
(Amps)
4,000 Watts
--150 Watts
110 MHz
20
Thoriated Tungsten
7.5 Volts
51.5 Amps
Grounded Cathode
35.0 pf
0.9 pf
20 pf
----- pf
--- pf
--- pf
Forced Air
Coaxial
------9.00 in; 2228.68 mm
4.16 in; 105.70 mm
6.2 lb ; 2.8 kg
T ypical Operation
Plate
Screen
Voltage Voltage
(Volts)
(Volts)
Plate
Current
(Amps)
Drive
Output
Power Power
(Watts) (kiloWatts)
C
RF Industrial oscillator
6,000
2.5
6,000
---
2.1
136
10.0
C
Grid driven RF amplifier
6,000
2.5
6,000
---
2.1
136
5.3
C
Grid driven RF amplifier plater modulated
5,500
2.0
5,000
---
1.3
115
5.3
AB
Grid driven AF amplifier or modulator
6,000
2.5
6,000
---
3.0
113
13.0
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 : 1(800) 414-8823. fax : (650) 592-9988 | email : powergrid@cpii.com
CPI | 3cX2500A3/ 8161
CPI | 4CW50,000J
3CX2500A3/8161