5AZ4

Directly heated full-wave high-vacuum rectifier for conventional AC power supplies. Its 5 V filament supports approximately 125 mA nominal rectified output and substantial peak inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 5T
Socket code: IO
Base pins: 8
Nominal heater: 5 V / 2 A

Description

Directly heated full-wave high-vacuum rectifier with a 5 V, 2 A filament for AC power-supply service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 5T
Socket code: IO
Base pins: 8
Nominal heater voltage: 5 V
Nominal heater current: 2 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

5T - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1IS	A	IS — Internal Screen EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5T
PIN2F	—	F — Filament EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5T
PIN4P1	A	P — Plate (Anode) EIA chart transcription; manufacturer corroboration pending; preserve source designation P1	Unverified EIA Base Connections, printed page 127, 5T
PIN6P2	A	P — Plate (Anode) EIA chart transcription; manufacturer corroboration pending; preserve source designation P2	Unverified EIA Base Connections, printed page 127, 5T
PIN8F	—	F — Filament EIA chart transcription; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 127, 5T

Section ratings

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1400 V
Rectifier nominal output current: 125 mA
Rectifier peak forward current: 375 mA
Rectifier forward voltage drop: 60 V

Published full-wave rectifier ratings promoted from the printed chart; supply-voltage and voltage-drop test conditions retained as parameters.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1400 V
Rectifier nominal output current: 125 mA
Rectifier peak forward current: 375 mA
Rectifier forward voltage drop: 60 V

Second physical rectifier section; electrical properties populated from applicable published 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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Filament/heater voltage
5 V
Published condensed-characteristics chart
Filament/heater current
2 A
Published condensed-characteristics chart
DC output current maximum
125 mA
FullWave
Peak inverse voltage maximum
1400 V
FullWave
RMS supply voltage per plate maximum
350 V
FullWave
Peak current per plate maximum
375 mA
FullWave

Characteristic

Tube voltage drop
60 V
At 125 mA DC

SECTION 2

Rectifier

Other

Filament/heater voltage
5 V
Published condensed-characteristics chart
Filament/heater voltage
5 V
Published condensed-characteristics chart
Filament/heater current
2 A
Published condensed-characteristics chart
Filament/heater current
2 A
Published condensed-characteristics chart
DC output current maximum
125 mA
FullWave
Peak inverse voltage maximum
1400 V
FullWave
RMS supply voltage per plate maximum
350 V
FullWave
Peak current per plate maximum
375 mA
FullWave

Characteristic

Tube voltage drop
60 V
At 125 mA DC
Tube voltage drop
60 V
At 125 mA DC