Electron Tubes for Industrial, Broadcast and Ham Radio Applications
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3CX2500F3
The
3CX2500F3 Vacuum tube is identical to the 3CX2500A3 vacuum tube
except for the addition of flexible filament and grid leads on the
base which can simplify low frequency installations.
|
Filament
|
Thoriated
Tungsten
|
|
Filament
Voltage
|
7.5V
|
|
Filament
Current
|
51.5A
|
|
Capacitances
(Gnd.Kath.
Connection)
|
Input
|
35.0pF
|
|
Output
|
0.9pF
|
|
Feed-through
|
20.0pF
|
|
Amplification Factor
|
20
|
|
Plate
Dissipation (Max.)
|
4000W
|
|
Grid
Dissipation (Max.)
|
150W
|
|
Frequency
for Max. Ratings(CW)
|
75MHz
|
|
Transconductance
|
20000umhos
|
|
Base
|
Flexible
Leads
|
|
Cooling
|
Forced Air
|
|
Maximum
Seal&Anode Core Temperature
|
250℃
|
|
Weight(approximate)
|
3.4kg
|
|
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
|
RF
Industrial
Oscillator
or Amplifier
|
6000
|
2.5
|
6000
|
2.1
|
136
|
10000
|
|
C
|
Grid Driven
RF Amplifier
|
6000
|
2.5
|
6000
|
2.1
|
136
|
10000
|
|
C
|
Grid Driven
RF Amplifier Plate Modulated
|
5500
|
2.0
|
5000
|
1.3
|
115
|
5300
|
|
AB
|
Grid Driven
AF Amplifier or Modulator
|
6000
|
2.5
|
6000
|
3.0*
|
113
|
13000
|
GREENSTONE USA
Copyright © 2001 GREENSTONE USA All rights reserved.
Revised:
October 20, 2010
| 
