4CX350AC-8321A Datasheet

The 4CX350AC/8321A is a compact air cooled
tetrode. This product is intended for use in equipment which normally uses the 4CX350A, and
where extended tube life is a concern. Externally,
the 4CX350AC/8321A is identical to the 4CX350A.
Electrical characteristics are the same in both
tube types with the exception that the heater
warmup time is increased to 40 seconds in the
4CX350AC/8321A.
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)
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
Grounded Cathode
23.6 pf
5.6 pf
.03 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
T ypical Operation
Plate
Screen
Voltage Voltage
(Volts)
(Volts)
Plate
Current
(Amps)
Drive
Output
Power Power
(Watts) (kiloWatts)
AB1
RF linear amplifier
2,500
0.30
2,200
400
0.29
---
0.385
AB1
AF amplifier or modulator
2,500
0.30
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 : 1(800) 414-8823. fax : (650) 592-9988 | email : powergrid@cpii.com
CPI | 4CX350AC/ 8321A
CPI | 4CW50,000J
4CX350AC/8321A