4CX350FJ Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – RF linear amplifier

4CX350FJ/8904
The 4CX350FJ/8904 is intended for Class AB lin-
ear RF amplifier service. The tube has rugged in-
ternal construction features. The 4CX350FJ/8904
may be used as an exact replacement for the
4CX350F/8322 in most linear applications, requir-
ing only minor circuit adjustment and retuning.
The tube has improved intermodulation distortion
characteristics. It contains a 26.5 volt heater, and
is recommended for new equipment designs.
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
17
Oxide Coated
26.5 Volts
0.65 Amps
Grounded Cathode
22.0 pf
5.9 pf
.03 pf
---
--- pf
--- pf
--- pf
Forced Air
9 Pin Special
SK-600A
SK-606
---
2.46 in; 62.60 mm
1.64 in; 41.60 mm
4 oz; 113 gm
Class of
Operation
AB1
Type of Service
RF linear amplifier
Maximum Ratings
Typical Operation
Plate
Voltage
(Volts)
Plate
Current
(Amps)
2,500
0.30
Plate
Voltage
(Volts)
Screen
Voltage
(Volts)
Plate
Current
(Amps)
Drive Output
Power Power
(Watts) (kiloWatts)
2,200
400
0.23
---
0.250
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]