4cx1500a
cHaRacteRistics
Plate Dissipation (Max.)
Screen Dissipation (Max.)
Grid Dissipation (Max.)
Frequency for Max. rating (CW)
Amplification Factor
Filament/Cathode
Voltage
The 4CX1500A is a general purpose tetrode for
use up to and through VHF. Insulation is ceramic
and the thoriated tungsten filament is a rugged
mesh design. The screen terminal is a continu-
ous ring which allows good isolation between the
plate and the control grid circuit. The 4CX1500A is
recommended for use as a Class C power ampli-
fier, Class B or Class AB1 linear amplifier, and as a
regulator and in pulse modulator service.
1,500 Watts
75 Watts
25 Watts
150 MHz
5.5
Thoriated Tungsten
5.0 Volts
Current
38.5 Amps
Grounded Cathode
78.0 pf
Capacitance
Input
Output
10.5 pf
Feedthrough
Capacitance
Input
0.5 pf
N/A
N/A
Output
N/A
Feedthrough
Cooling
N/A
Forced Air
Special, Breechblock
SK-831
Base
Air Socket
Air Chimney
Boiler
SK-806
N/A
Length
4.90 in; 124.50 mm
3.37 in; 85.60 mm
36 oz; 850 gm
Diameter
Weight
MaxiMuM Ratings
typical OpeRatiOn
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Oꢄꢅrꢁꢈꢆoꢉ
tꢃꢄꢅ of sꢅrvꢆꢇꢅ
pꢀꢁꢈꢅ
pꢀꢁꢈꢅ
pꢀꢁꢈꢅ
sꢇrꢅꢅꢉ
pꢀꢁꢈꢅ
Drꢆvꢅ
Oꢊꢈꢄꢊꢈ
powꢅr
Voꢀꢈꢁꢋꢅ cꢊrrꢅꢉꢈ
Voꢀꢈꢁꢋꢅ Voꢀꢈꢁꢋꢅ cꢊrrꢅꢉꢈ
powꢅr
(Voꢀꢈꢂ)
(amꢄꢂ)
(Voꢀꢈꢂ)
(Voꢀꢈꢂ)
(amꢄꢂ) (Wꢁꢈꢈꢂ) (kꢆꢀoWꢁꢈꢈꢂ)
c
c
RF amꢄꢀꢆfiꢅr ꢁꢈ 30 MHz
RF amꢄꢀꢆfiꢅr ꢁꢈ 220 MHz
RF amꢄꢀꢆfiꢅr pꢀꢁꢈꢅ Modꢊꢀꢁꢈꢅd ꢁꢈ 30 MHz
RF lꢆꢉꢅꢁr amꢄꢀꢆfiꢅr ꢁꢈ 30 MHz
aF amꢄꢀꢆfiꢅr or Modꢊꢀꢁꢈor (2 ꢈꢊbꢅꢂ)
5,000
3,000
3,500
4,000
4,000
1.0
1.0
0.8
1.0
1.0
4,000
3,000
3,400
3,900
3,900
500
500
500
600
600
0.80
1.01
0.90
0.75
1.5
3.6
31.5
10
2.5
1.5
2.32
1.85
3.7
c
aB
aB
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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 ꢆꢉformꢁꢈꢆoꢉ on this and other CPI MPP products, visit our website at: www.ꢇꢄꢆꢆ.ꢇom,
or contact: CPI Microwave Products Division, Eimac Operation,607 Hansen Way, Palo Alto, CA 94303
t e l e p h o n e : 1(800) 414-8823. f a x : (650) 592-9988 | e m a il : powergrid@cpii.com