4cx5000a/8170
chaRacteRistics
Plate Dissipation (Max.)
Screen Dissipation (Max.)
Grid Dissipation (Max.)
Frequency for Max. rating (CW)
Amplification Factor
Filament/Cathode
Voltage
The 4CX5000A/8170 is useful as an oscillator, am-
plifier or modulator at frequencies up to 220 MHz,
Class AB1 audio amplifier, or as a screen-modu-
lated radio frequency amplifier. The rated plate
dissipation is 5 kW for most classes of services
and 6 kW for Class AB operation.
6,000 Watts
250 Watts
75 Watts
220 MHz
4.5
Thoriated Tungsten
7.5 Volts
Current
75 Amps
Capacitance
Input
Grounded Cathode
120.0 pf
Output
20.5 pf
Feedthrough
Capacitance
Input
0.7 pf
Grounded Grid
56.0 pf
Output
21.5 pf
Feedthrough
Cooling
0.1 pf
Forced Air
Special Coaxial
SK-300A/SK-360
SK-306/SK-356
---
Base
Air Socket
Air Chimney
Boiler
Length
9.13 in; 231.8 mm
4.94 in; 125.4 mm
9.5 lb; 4.3 kg
Diameter
Weight
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typicalꢀOpeRatiOn
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pꢁꢂꢉꢆꢀꢀ
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Voꢁꢉꢂꢌꢆꢀ cꢋrrꢆꢊꢉꢀ
Voꢁꢉꢂꢌꢆꢀꢀ Voꢁꢉꢂꢌꢆꢀ cꢋrrꢆꢊꢉꢀ ꢀpowꢆrꢀ powꢆrꢀ
(Voꢁꢉꢃ)ꢀ
7,500ꢀ
5,500ꢀ
7,500ꢀ
7,500ꢀ
7,500ꢀ
(amꢅꢃ)ꢀ
3.0ꢀ
(Voꢁꢉꢃ)ꢀ
6,500ꢀ
5,000ꢀ
7,500ꢀ
7,500ꢀ
7,000ꢀ
(Voꢁꢉꢃ)ꢀ
(amꢅꢃ)ꢀ (Wꢂꢉꢉꢃ)ꢀ (kꢇꢁoWꢂꢉꢉꢃ)
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ꢀ
ꢀ
cꢀ
cꢀ
RFꢀꢂmꢅꢁꢇfiꢆrꢀ
750ꢀ
2.3ꢀ
1.4ꢀ
1.1ꢀ
1.9ꢀ
3.7ꢀ
100ꢀ
25ꢀ
10.0
5.8
RFꢀꢂmꢅꢁꢇfiꢆrꢀꢅꢁꢂꢉꢆꢀmodꢋꢁꢂꢉꢆdꢀ
RFꢀꢂmꢅꢁꢇfiꢆrꢀꢃꢈrꢆꢆꢊꢀmodꢋꢁꢂꢉꢆdꢀ
RFꢀꢁꢇꢊꢆꢂrꢀꢂmꢅꢁꢇfiꢆrꢀ
2.5ꢀ
500ꢀ
cꢀ
3.0ꢀ
350ꢀ
11ꢀ
3.55
10.0
17.5
aB1ꢀ
aB1ꢀ
4.0ꢀ
1,250ꢀ
1,250ꢀ
---ꢀ
---ꢀ
aFꢀꢂmꢅꢁꢇfiꢆrꢀorꢀmodꢋꢁꢂꢉorꢀ
4.0ꢀ
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 Operation, 607 Hansen Way, Palo Alto, CA 94303
telephone: 1(800) 414-8823. fax: (650) 592-9988 | email: powergrid@cpii.com