4CX250B Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – RF amplifier up to 175 MHz

4CX250B/7203
The 4CX250B/7203 has a maximum plate dissi-
pation rating of 250 watts and a maximum input
power rating of 500 watts. The 4CX250B/7203 is
designed to operate with a heater voltage of 6.0
volts.
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
250 Watts
12 Watts
2 Watts
500 MHz
5
Oxide Coated
6.0 Volts
2.6 Amps
Grounded Cathode
15.7 pf
4.5 pf
.04 pf
Grounded Grid
13.0 pf
4.5 pf
.01 pf
Forced Air
9 Pin Special
SK-600A
SK-606
---
2.46 in; 62.50 mm
1.64 in; 41.70 mm
4 oz; 113 gm
Maximum Ratings
Typical Operation
Class of
Operation
Type of Service
C
RF amplifier up to 175 MHz
C
RF amplifier plate modulated up to 175 MHz
AB1
RF linear amplifier up to 175 MHz
AB1
RF linear amplifier (AM service) up to 175 MHz
AB1
AF amplifier or modulator
Plate
Voltage
(Volts)
Plate
Current
(Amps)
2,000
0.25
1,500
0.25
2,000
0.25
2,000
0.25
2,000
0.25
Plate
Voltage
(Volts)
Screen
Voltage
(Volts)
Plate
Current
(Amps)
Drive Output
Power Power
(Watts) (kiloWatts)
2,000
300
.250
2.9
0.390
1,500
250
.200
1.7
0.235
2,000
350
0.25
---
0.300
2,000
350
0.15
---
0.65
2,000
350
0.50
---
0.600
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]