CPI 4CX300A

The 4CX300A/8167 is a compact power tetrode
having a maximum plate dissipation rating of 300
watts. The ceramic/metal construction and the
internally utilized electrode structure combine to
make the 4CX300A/8167 especially durable and
free from mechanically induced noise under conditions of severe acceleration caused by shock or
vibration.
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)
300 Watts
12 Watts
2 Watts
500 MHz
4.8
Oxide Coated
6.0 Volts
2.9 Amps
Grounded Cathode
29.0 pf
4.0 pf
.04 pf
----- pf
--- pf
--- pf
Forced Air
Special, Breechblock
SK-700
SK-606
--2.50 in; 63.50 mm
1.64 in; 41.60 mm
1.64 oz; 113 gm
T ypical Operation
Plate
Screen
Voltage Voltage
(Volts)
(Volts)
Plate
Current
(Amps)
Drive
Output
Power Power
(Watts) (kiloWatts)
C
RF Amplifier
2,000
0.25
2,000
250
0.25
2.9
0.390
C
RF amplifier at 500 MHz
2,000
0.25
2,000
250
0.25
---
0.225
C
RF amplifier plate modulated
1,500
0.20
1,500
250
0.20
1.7
0.235
AB1
RF linear amplifier
2,500
0.25
2,500
350
0.25
---
0.400
AB1
RF linear amplifier (AM service)
2,500
0.25
2,500
350
0.15
---
0.85
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 | 4CX300A/ 8167
CPI | 4CW50,000J
4CX300A/8167