363A

Western Electric directly heated air-cooled transmitting pentode designed for Class-C RF service. Its filamentary cathode and RF operating ratings identify it as a radio-frequency power tube.

Directly heatedCold cathodeCommon cathodeDissimilar

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

Description

The Western Electric 363A is a directly heated air-cooled transmitting pentode for Class C RF 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: 10 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

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.012 S
Max plate voltage: 4000 V
Max plate dissipation: 350 W
Max cathode current: 500 mA

High-power transmitting pentode.

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

1956 Western Electric Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum Plate Current
500 mA
Maximum Frequency
35 MHz
Typical Maximum Power Output
1000 W
ClassC; RF

Characteristics

Typical Plate Voltage
700 V
Typical Plate Current
500 mA