4CX350A Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – RF linear amplifier

4CX350A/8321
The 4CX350A/8321 has a maximum plate dissi-
pation of 350 watts and is intended for Class AB
audio or RF amplifier service. The tube is exter-
nally identical to the 4CX250B but contains rug-
ged internal construction features. Amplification
factor and cathode area have been increased over
the basic 4CX250B to give higher transconduc-
tance and figure of merit.
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
350 Watts
8 Watts
0 Watts
110 MHz
13
Oxide Coated
6.0 Volts
2.9 Amps
Grounded Cathode
23.6 pf
5.6 pf
.03 pf
---
--- pf
--- pf
--- pf
Forced Air
9 Pin Special
SK-600A
SK-606
---
2.47 in; 62.60 mm
1.64 in; 41.60 mm
4 oz; 113 gm
Class of
Operation
AB1
AB1
Maximum Ratings
Typical Operation
Type of Service
RF linear amplifier
AF amplifier or modulator
Plate
Voltage
(Volts)
Plate
Current
(Amps)
2,500
0.30
2,500
0.30
Plate
Voltage
(Volts)
Screen
Voltage
(Volts)
Plate
Current
(Amps)
Drive Output
Power Power
(Watts) (kiloWatts)
2,200
400
0.29
---
0.385
2,200
400
0.58
---
0.770
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 Operation, 607 Hansen Way, Palo Alto, CA 94303
telephone: [phone]. fax: [phone] | email: [e-mail]