Electron Tubes for Industrial, Broadcast and Ham Radio Applications
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4CX350A 8321
The
4CX350A / 8321 vacuum tube has a maximum plate dissipation of
350 watts and are intended for Class AB audio or RF amplifier
service.
|
Filament
|
Thoriated Tungsten
|
|
Filament Voltage
|
6.0V
|
|
Filament Current
|
2.9A
|
|
Capacitances
(Gnd.Kath.
Connection)
|
Input
|
23.6pF
|
|
Output
|
5.6pF
|
|
Feed-through
|
0.03pF
|
|
Amplification Factor
|
13
|
|
Screen Dissipation
(Max.)
|
8W
|
|
Plate Dissipation
(Max.)
|
350W
|
|
Grid Dissipation
(Max.)
|
0W
|
|
Frequency for Max.
Ratings(CW)
|
110MHz
|
|
Base
|
Special, coaxial
|
|
Cooling
|
Forced Air
|
|
Maximum Seal&Anode
Core Temperature
|
250℃
|
|
Weight(approximate)
|
113gm
|
|
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)
|
Screen
Voltage
(volts)
|
|
AB1
|
RF Amplifier
|
2500
|
0.30
|
2200
|
0.29
|
-
|
385
|
385
|
|
AB1
|
RF Amplifier Plate
Modulated
|
2500
|
0.30
|
2200
|
0.58*
|
-
|
770*
|
770
|
*Two tubes
GREENSTONE USA
Copyright © 2001 GREENSTONE USA All rights reserved.
Revised:
October 20, 2010
| 
