CPI 3CW20000H3

The 3CW20,000H3 is a water cooled, ceramic/
metal, medium-mu power triode designed primarily for use in industrial radio frequency heating
services. Its water cooled anode is conservatively
rated at 20 kW of plate dissipation with low water
flow and pressure drop. Input of 40 kW is permissible up to 90 MHz. Plentiful reserve emission
is available from its 750 watt filament. The grid
structure is rated at 250 watts, making this tube
an excellent choice for industrial service.
Class of Operation
C
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)
RF Industrial oscillator
12,000
4.0
T ypical Operation
Plate
Screen
Voltage Voltage
(Volts)
(Volts)
10,000
20,000 Watts
--250 Watts
90 MHz
20
Thoriated Tungsten
7.5 Volts
99.0 Amps
Grounded Cathode
53.0 pf
1.4 pf
34 pf
----- pf
--- pf
--- pf
Water and Forced Air
Flexible Filament
Leads
------18.25 in; 463.50 mm
6.75 in; 171.40 mm
12.0 lb; 5.5 kg
---
Plate
Current
(Amps)
4.0
Drive
Output
Power Power
(Watts) (kiloWatts)
340
28.0
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 : 1(800) 414-8823. fax : (650) 592-9988 | email : powergrid@cpii.com
CPI | 3cW20,000H3
CPI | 4CW50,000J
3CW20,000H3