3CW20000H7 Datasheet, PDF (1/1 Pages) Communications & Power Industries, Inc. – The 3CW20,000H7 is a high-mu power triode

3CW20,000H7
The 3CW20,000H7 is a high-mu power triode
intended for use as a dc voltage or current regu-
lator, or in a high voltage switch tube or pulsed
regulator service. In addition, since the tube
is identical to the 3CW20,000A7 except for the
anode and grid flanges and the addition of the fila-
ment flying leads, it is useful as a zero bias Class
B amplifier in audio or RF applications.
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
20,000 Watts
---
500 Watts
110 MHz
200
Thoriated Tungsten
7.5 Volts
99.0 Amps
Grounded Cathode
59.0 pf
0.2 pf
36 pf
---
--- pf
--- pf
--- pf
Water and Forced Air
Flexible Filament
Leads
---
---
---
20.70 in; 525.80 mm
6.75 in; 171.40 mm
12.0 lb; 5.5 kg
Class of
Operation
AB
AB
AB
Maximum Ratings
Typical Operation
Type of Service
Cathode driven RF linear amplifier
Cathode driven RF linear amplifier
(AM service)
Grid driven AF amplifier or modulator
Plate
Voltage
(Volts)
Plate
Current
(Amps)
7,000
5.0
7,000
5.0
7,000
5.0
Plate
Voltage
(Volts)
Screen
Voltage
(Volts)
Plate
Current
(Amps)
Drive Output
Power Power
(Watts) (kiloWatts)
7,000
---
5.0
1,540 24.0
7,000
---
2.4
330
5.65
7,000
---
10.0
560
47.0
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.
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: [phone]. fax: [phone] | email: [e-mail]