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Rectifier - Half Wave ·Rectifier

327A

Western Electric tungsten-filament argon-filled half-wave rectifier for AC-to-DC conversion and battery charging, providing approximately 2 A DC output.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
EDISON
Base pins
3
Nominal heater
2 V / 12 A

Description

Western Electric 327A is a half-wave tungsten-filament argon-filled rectifier for supplying direct current from an AC source, including battery-charging service.

Socket description

Edison screw base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
EDISON
Base pins
3
Nominal heater voltage
2 V
Nominal heater current
12 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

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
275 V
Rectifier nominal output current
2 A
Rectifier peak forward current
6 A
Rectifier forward voltage drop
8 V

Published half-wave rectifier ratings.

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

2026 Western Electric 300s

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Ignition voltage at 60 Hz

    7 to 16 V

    60Hz

Other

  • Maximum output voltage

    75 V

    HalfWaveOrFullWave