146

Three-electrode transmitting power tube for Class B audio amplification, modulation, Class C RF power amplification, and oscillation. Rated for 125 W plate dissipation with full-rating operation specified to approximately 15 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / 3.25 A

Description

Three-electrode transmitting tube for Class B audio-frequency power amplification, RF power amplification, Class C oscillation, and modulation service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 10 V
Nominal heater current: 3.25 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0039 S
Amplification factor: 75
Max plate voltage: 1500 V
Max plate dissipation: 125 W

Representative electrical section; promoted values mapped from published ratings and characteristics where applicable.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1950 General Electric Transmitting Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum signal plate input per tube
250 W
ClassB Audio
Maximum operating frequency at full ratings
15 MHz
Published datasheet value