Power - Triode ·Triode
Western Electric thoriated-tungsten transmitting triode for Class-B RF service, with approximately 175 W catalog RF output.
Western Electric transmitting triode with a thoriated-tungsten filament, rated for B-RF service and a catalog power output of 175 W.
Medium 4-contact bayonet base
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Absolute maximum ratings and average static characteristics promoted from the exact transmitting-tube row.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Filament Voltage
10 V
Filament Current
9.75 A
Maximum Plate Voltage
3000 V
Maximum Plate Current
375 mA
Maximum Plate Dissipation
350 W
Maximum Frequency
7.5 MHz
Plate Voltage
2500 V
B-RF
Plate Current
120 mA
B-RF
Power Output
175 W
B-RF
Amplification Factor
16
B-RF
Transconductance
5700 µS
B-RF
Data set 02
Published operating points and test conditions from this source.
Plate To Grid Capacitance
21 pF
Grid To Filament Capacitance
18 pF
Plate To Filament Capacitance
2 pF
MaximumDirectGridCurrent
75 mA
MaximumFrequencyAtFullRatings
7.5 MHz