5AT4

High-vacuum full-wave power rectifier designed for high-current DC supplies with relatively low internal voltage drop. Its indirectly heated construction provides substantial inverse-voltage capability and approximately 300 mA nominal output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 5 V / 5.5 A

Description

High-vacuum full-wave power rectifier with very low internal voltage drop for high-current DC power supplies.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: 8
Nominal heater voltage: 5 V
Nominal heater current: 5.5 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: 1550 V
Rectifier nominal output current: 300 mA
Rectifier peak forward current: 2.25 A
Rectifier forward voltage drop: 31 V
Rectifier warm-up time: 30 s

Representative row for two identical full-wave rectifier plates.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1550 V
Rectifier nominal output current: 300 mA
Rectifier peak forward current: 2.25 A
Rectifier forward voltage drop: 31 V
Rectifier warm-up time: 30 s

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

AC plate voltage per plate RMS
350 V
FullWave
Minimum total effective plate supply impedance per plate
15 ohm
FullWave

SECTION 2

Rectifier

Other

AC plate voltage per plate RMS
350 V
FullWave
Minimum total effective plate supply impedance per plate
15 ohm
FullWave