CPI 3CX10

The 3CX10,000A7/8160 is a high-mu power triode and is intended for use as a zero bias Class
B amplifier an audio or RF applications, or as a
Class C amplifier, CW or modulated. Operation in
a Class B with zero grid bias offers circuit simplicity by eliminating the bias supply, and in addition
grounded-grid operation is attractive since a power gain as high as twenty times can be obtained
with the tube.
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)
10,000 Watts
--500 Watts
160 MHz
200
Thoriated Tungsten
7.5 Volts
99.0 Amps
Grounded Cathode
59.0 pf
36.0 pf
0.2 pf
Grounded Grid
59.0 pf
0.2 pf
36 pf
Forced Air
Coaxial
SK-1300
SK-1306
--8.75 in; 222.20 mm
7.05 in; 179.10 mm
12.0 lb ; 5.5 kg
T ypical Operation
Plate
Screen
Voltage Voltage
(Volts)
(Volts)
Plate
Current
(Amps)
Drive
Output
Power Power
(Watts) (kiloWatts)
C
Cathode driven RF amplifier
8,000
4.0
7,600
---
3.7
1,510
22.5
C
Grid driven RF amplifier plate modulated
6,500
3.0
5,000
---
3.0
380
11.9
AB2
Cathode driven RF amplifier
8,000
5.0
7,000
---
5.0
1,540
24.2
AB2
Cathode driven RF linear amplifier AM service
8,000
5.0
7,000
---
2.4
330
5.6
AB2
Grid driven AF amplifier or modulator
8,000
5.0
7,000
---
10.0
560
47.7
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 | 3cX10,000A7/ 8160
CPI | 4CW50,000J
3CX10,000A7/8160