4cW50,000e
chaRacteRistics
Plate Dissipation (Max.)
Screen Dissipation (Max.)
Grid Dissipation (Max.)
Frequency for Max. rating (CW)
Amplification Factor
Filament/Cathode
Voltage
The 4CW50,000E is characterized by low input
and feedback capacitances and low internal lead
inductances. A rugged mesh thoriated tungsten
filament provides adequate emission over the
long operating life. It is recommended for use as
a Class C RF amplifier or oscillator, a Class AB RF
linear amplifier, or a Class AB push-pull AF ampli-
fier or modulator. The 4CW50,000E is also use-
ful as a plate and screen-modulated Class C RF
amplifier.
50,000 Watts
1,500 Watts
400 Watts
110 MHz
4.5
Thoriated Tungsten
12.0 Volts
Current
215 Amps
Capacitance
Input
Grounded Cathode
310 pf
Output
52.0 pf
Feedthrough
Capacitance
Input
0.7 pf
Grounded Grid
140 pf
Output
52.0 pf
Feedthrough
Cooling
0.3 pf
Water and Forced Air
Special Coaxial
SK-2011A
Base
Air Socket
Air Chimney
Boiler
---
---
Length
11.50 in; 292.00 mm
9.53 in; 242.00 mm
35.0 lb; 15.9 kg
Diameter
Weight
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(Voꢁꢉꢃ)ꢀ
17,500ꢀ
15,000ꢀ
17,500ꢀ
17,500ꢀ
(amꢅꢃ)ꢀ
12.0ꢀ
(Voꢁꢉꢃ)ꢀ
15,000ꢀ
14,000ꢀ
10,000ꢀ
15,000ꢀ
(Voꢁꢉꢃ)ꢀ
1,500ꢀ
750ꢀ
(amꢅꢃ)ꢀ (Wꢂꢉꢉꢃ)ꢀ (kꢇꢁoWꢂꢉꢉꢃ)
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cꢀ
RFꢀꢂmꢅꢁꢇfiꢆrꢀ
RFꢀꢂmꢅꢁꢇfiꢆrꢀꢅꢁꢂꢉꢆꢀmodꢋꢁꢂꢉꢆdꢀ
RFꢀꢁꢇꢊꢆꢂrꢀꢂmꢅꢁꢇfiꢆrꢀ
11.5ꢀ
9.2ꢀ
150ꢀ
685ꢀ
---ꢀ
137.0
110.0
57.0
cꢀ
12.0ꢀ
aB1ꢀ
aB1ꢀ
12.0ꢀ
1,800ꢀ
1,250ꢀ
9.1ꢀ
aFꢀꢁꢇꢊꢆꢂrꢀꢂmꢅꢁꢇfiꢆrꢀ
12.0ꢀ
18.6ꢀ
---ꢀ
195.0
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.
Forꢀꢇꢊformꢂꢉꢇoꢊꢀon this and other CPI products, visit our website at:ꢀwww.ꢈꢅꢇꢇ.ꢈom,
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