Power - Triode ·Triode
Indirectly heated oxide-cathode power triode for Class A and Class B audio amplification and RF service. It combines low plate resistance with approximately 25 W plate dissipation and 600 V plate capability for general power-amplifier applications.
Indirectly heated oxide-cathode triode with published Class A and Class B audio-frequency operation plus radio-frequency operating conditions.
Medium 5-contact transmitting-tube 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
Published ratings/characteristics promoted; remaining useful source values represented as parameters.
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.
Grid-anode capacitance
8 pF
Anode-filament capacitance
2.7 pF
Grid-filament capacitance
11.9 pF
Maximum direct anode current
170 mA
Maximum direct grid current
30 mA
Maximum frequency at full ratings
2 MHz
Anode voltage
400 V
ClassA;AF
Anode current
50 mA
ClassA;AF
Undistorted output
4 W
ClassA;AF
Maximum output
50 W
ClassB;AF;TwoTubes
Data set 02
Published operating points and test conditions from this source.
Heater/filament voltage
6 V
Heater/filament current
1.4 A
Plate resistance
1670 ohm
Transconductance
0.009 A/V
Amplification factor
15
Maximum direct anode voltage
600 V
Maximum anode dissipation
25 W
Maximum cathode/anode current
170 mA