AZ12

Directly heated full-wave rectifier for higher-current mains power supplies. Its heavier four-volt filament supports greater rectified output than smaller AZ-family types.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: P8A
Base pins: 8
Nominal heater: 4 V / 2.2 A

Description

Directly heated full-wave rectifier with 4 V filament and transformer-voltage-dependent DC output ratings up to 200 mA.

Socket description

European 8-pin side-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: P8A
Base pins: 8
Nominal heater voltage: 4 V
Nominal heater current: 2.2 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: 500 V
Rectifier nominal output current: 200 mA

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 500 V
Rectifier nominal output current: 200 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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

Heater or filament voltage
4 V
Published nominal value
Heater or filament current
2.2 A
Published nominal value

Other

Rectified output current
200 mA
Published maximum or highest listed value

SECTION 2

Rectifier

Characteristics

Heater or filament voltage
4 V
Published nominal value
Heater or filament current
2.2 A
Published nominal value

Data set 02

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Electrical characteristics reference
AZ4
Published cross-reference