Electron Tubes for Industrial, Broadcast and Ham Radio Applications
Call us Toll Free at: 877-206-5021 
3CX1500A7 8877
The
3CX1500A7 / 8877 vacuum tube is designed for use as a cathode-driven
Class AB2 or Class B amplifier in audio or RF applications including
the VHF band or as a cathode driven plate modulated Class C RF
amplifier. As a linear amplifier, high power gain may be obtained
without sacrifice of low intermodulation distortion characteristics.
Low grid interception and high amplification factor combine to make
drive requirements exceptionally low for a tube of this power
capacity.
|
Filament
|
Thoriated Tungsten
|
|
Filament Voltage
|
5.0V
|
|
Filament Current
|
10.5A
|
|
Capacitances
(Gnd.Kath.
Connection)
|
Input
|
38.5pF
|
|
Output
|
0.1pF
|
|
Feed-through
|
10.2pF
|
|
Capacitances
(Gnd.Grid.
Connection)
|
Input
|
38.5pF
|
|
Output
|
10.2pF
|
|
Feed-through
|
0.1pF
|
|
Amplification Factor
|
200
|
|
Plate Dissipation
(Max.)
|
1500W
|
|
Grid Dissipation
(Max.)
|
25W
|
|
Frequency for Max.
Ratings(CW)
|
250MHz
|
|
Base
|
Special 7-pin
|
|
Cooling
|
Forced Air
|
|
Maximum Seal&Anode
Core Temperature
|
250℃
|
|
Weight(approximate)
|
0.7kg
|
|
Operating Position
|
Any
|
|
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
|
Cathode Driven RF
Amplifier Plate
Modulated at 30MHz
|
3200
|
0.80
|
2400
|
0.60
|
41
|
1000
|
|
B
|
Cathode Driven RF Linear
Amplifier at 108MHz
|
4000
|
1.0
|
4000
|
1.0
|
78
|
2600+
|
|
AB2
|
Cathode Driven RF Linear Amplifier
at
220MHz
|
4000
|
1.0
|
2500
|
1.0
|
57
|
1520+
|
|
AB2
|
Cathode Driven AF Amplifier at
30MHz
|
4000
|
1.0
|
3500
|
1.0
|
64
|
2075+
|
+Useful Power Output
GREENSTONE USA
Copyright © 2001 GREENSTONE USA All rights reserved.
Revised:
October 20, 2010
| 
