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Rectifier - Full Wave ·Rectifier-Rectifier

314A

Western Electric mercury-vapor full-wave transmitting rectifier using two rectifier paths. Its heavy filament supports substantial peak current with the low voltage drop characteristic of mercury-vapor rectification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
UX4
Base pins
-
Nominal heater
5 V / 5 A

Description

Mercury-vapor full-wave transmitting rectifier.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UX4
Base pins
-
Nominal heater voltage
5 V
Nominal heater current
5 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
300 V
Rectifier peak forward current
2.5 A
Rectifier forward voltage drop
10 V

Promoted fields audited from printed ratings/characteristics; remaining published values preserved as parameters.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
300 V
Rectifier peak forward current
2.5 A
Rectifier forward voltage drop
10 V

Second physical rectifier section; electrical properties populated from the documented identical section.

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

Rectifier

Characteristics

  • Filling

    Mercury vapor

Other

  • Maximum peak anode voltage

    300 V

Data set 02

2026 Western Electric 300s

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Filament voltage

    5 volt

    Filament voltage 5.0 volts

  • Nominal fi l a m e n t current

    5 amperes

    Nominal fi l a m e n t current 5.0 amperes

  • supply. The voltage should be maintained to within

    5 volt

    supply. The voltage should be maintained to within 5% of its rated value (5.0 volts). Operation

  • used, this time is

    30 seconds

    used, this time is 30 seconds. If the tube is operated at ambient temperatures below 25° C., a

  • Approximate anode-cathode potential drop

    10 volts

    Approximate anode-cathode potential drop 10 volts

  • ambient temperature range and plate current range, it may vary from

    5 volts

    ambient temperature range and plate current range, it may vary from 5 to 25 volts.

  • Table

    1 volt

    Table 1. The values listed are average values of the pulsating current and voltage for an

Other

  • Maximum peak plate current

    2.5 amperes

    Maximum peak plate current 2.5 amperes

  • Maximum peak potential between electrodes

    300 volts

    Maximum peak potential between electrodes 300 volts

  • The maximum permissible peak plate current (

    2.5 amperes

    The maximum permissible peak plate current (2.5 amperes) is a limitation on the instantaneous

  • The maximum permissible peak potential between electrodes (

    300 volts

    The maximum permissible peak potential between electrodes (300 volts) is a limitation on the

SECTION 2

Rectifier

Characteristic

  • Filament voltage

    5 volt

    Filament voltage 5.0 volts

  • Nominal fi l a m e n t current

    5 amperes

    Nominal fi l a m e n t current 5.0 amperes

  • supply. The voltage should be maintained to within

    5 volt

    supply. The voltage should be maintained to within 5% of its rated value (5.0 volts). Operation

  • used, this time is

    30 seconds

    used, this time is 30 seconds. If the tube is operated at ambient temperatures below 25° C., a

  • Approximate anode-cathode potential drop

    10 volts

    Approximate anode-cathode potential drop 10 volts

  • ambient temperature range and plate current range, it may vary from

    5 volts

    ambient temperature range and plate current range, it may vary from 5 to 25 volts.

Other

  • Maximum peak plate current

    2.5 amperes

    Maximum peak plate current 2.5 amperes

  • Maximum peak potential between electrodes

    300 volts

    Maximum peak potential between electrodes 300 volts

  • The maximum permissible peak plate current (

    2.5 amperes

    The maximum permissible peak plate current (2.5 amperes) is a limitation on the instantaneous