AZ31

Directly heated full-wave power rectifier for AC mains-operated electronic equipment. Its four-volt filament and dual-diode construction provide conventional receiver and amplifier DC power.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: Octal
Socket code: IO
Base pins: 8
Nominal heater: 4 V / 1.1 A

Description

Directly heated full-wave power rectifier for AC mains-operated equipment.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: Octal
Socket code: IO
Base pins: 8
Nominal heater voltage: 4 V
Nominal heater current: 1.1 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Octal - 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 nominal output current: 100 mA

Representative of two identical rectifier sections.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier nominal output current: 100 mA

Second physical rectifier section; promoted electrical properties populated from 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

1951 Mullard Valve and Service Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

RMS Input per Anode
500 V
OutputCurrent=60mA
RMS Input per Anode
400 V
OutputCurrent=75mA
RMS Input per Anode
300 V
OutputCurrent=100mA
Maximum Reservoir Capacitance
60 uF

SECTION 2

Rectifier

Other

RMS Input per Anode
500 V
OutputCurrent=60mA
RMS Input per Anode
400 V
OutputCurrent=75mA

Data set 02

1967 Mullard Receiving Tubes for Maintenance

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Transformer RMS Voltage Per Plate
500 V
FullWave;OutputCurrent60mA
Maximum Rectified Output Current
60 mA
FullWave;Transformer500VrmsPerPlate
Maximum Reservoir Capacitance
60 uF
FullWave;Transformer500VrmsPerPlate
Transformer RMS Voltage Per Plate
400 V
FullWave;OutputCurrent75mA
Maximum Rectified Output Current
75 mA
FullWave;Transformer400VrmsPerPlate
Maximum Reservoir Capacitance
60 uF
FullWave;Transformer400VrmsPerPlate
Transformer RMS Voltage Per Plate
300 V
FullWave;OutputCurrent100mA
Maximum Rectified Output Current
100 mA
FullWave;Transformer300VrmsPerPlate
Maximum Reservoir Capacitance
60 uF
FullWave;Transformer300VrmsPerPlate

Data set 03

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Electrical characteristics reference
AZ1
Published cross-reference