Power - Pentode (NOT beam) ·Pentode
Power pentode designed for radio-frequency transmitting, Class-C power amplification, oscillation, or frequency-multiplier service.
Radiation-cooled low-voltage, high-current pentode for Class-C RF power service.
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 promoted ratings/characteristics captured where applicable; additional source values preserved in parameter rows.
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.
Maximum frequency at full ratings
60 MHz
Maximum signal plate input
180 W
ClassB
Maximum signal screen-grid input
7 W
ClassB
Peak cathode current maximum
1.5 A
Data set 02
Published operating points and test conditions from this source.
Amplification factor
6.7
Maximum frequency
60 MHz
Grid-to-plate capacitance
0.1 pF
Grid-to-filament capacitance
22.5 pF
Plate-to-filament capacitance
11 pF
Maximum plate dissipation
45 W
Plate voltage
1000 V
ClassC
Plate current
170 mA
ClassC
Power output
132 W
ClassC
Grid voltage
-120 V
ClassC
Grid current
5 mA
ClassC
Screen voltage
250 V
ClassC
Data set 03
Published operating points and test conditions from this source.
Plate voltage
1000 V
RFPowerAmplifier
Plate current
170 mA
RFPowerAmplifier
Power output
132 W
RFPowerAmplifier
Control-grid voltage
-120 V
RFPowerAmplifier
Grid current
5 mA
RFPowerAmplifier
Screen voltage
250 V
RFPowerAmplifier
Maximum frequency at full input
60 MHz
RFPowerAmplifier
Grid-to-plate capacitance
0.1 pF
Section1
Input capacitance
22.5 pF
Section1
Output capacitance
11 pF
Section1