Electron Tubes for Industrial, Broadcast and Ham Radio Applications
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3CX20,000H3 3CX20000H3
The
3CX20000H3 vacuum tube is a medium-mu power triode designed for use
as an industrial oscillator in the LF to lower VHF range
30khz-90mhz. This triode may also be used for AM broadcast service
as a modulator, modulated RF stage, or as a linear amplifier.
|
Filament
|
Thoriated Tungsten
|
|
Filament Voltage
|
10V
|
|
Filament Current
|
160A
|
|
Capacitances
(Gnd. Grid.
Connection)
|
Input
|
70.0pF
|
|
Output
|
2.3pF
|
|
Feed-through
|
43.0pF
|
|
Plate Dissipation
(Max.)
|
20000W
|
|
Grid Dissipation
(Max.)
|
750W
|
|
Frequency for Max.
Ratings (CW)
|
90MHz
|
|
Base
|
Special, coaxial
|
|
Cooling
|
Forced Air
|
|
Maximum Seal&Anode
Core Temperature
|
250℃
|
|
Weight (approximate)
|
9.1kg
|
|
Operating Position
|
Vertical, base up or
down
|
|
Class of Operation
|
Type of Service
|
Max. Ratings
|
TYPICAL OPERATION
|
|
Plate Voltage
(V)
|
Plate Current
(A)
|
Plate Voltage
(V)
|
Plate Current
(A)
|
Drive Power
(W)
|
Output Power
(W)
|
|
C
|
Grid Driven RF
Amplifier
|
12000
|
8.0
|
10000
|
7.9
|
960
|
64000
|
|
C
|
Grid Driven RF
Linear Amplifier
|
6500
|
5.5
|
6500
|
5.0
|
1500
|
27500
|
|
AB
|
Grid Driven AF
Amplifier or Modulator
|
8000
|
8.0
|
7500
|
14.8
|
800
|
80000
|
GREENSTONE USA
Copyright © 2001 GREENSTONE USA All rights reserved.
Revised:
November 02, 2010
| 
