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6AZ5

Subminiature general-purpose double diode for detector and half-wave rectifier applications, providing two independent low-current rectifying sections.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 8DF
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 150 mA

Description

Subminiature general-purpose double diode for detector and rectifier applications.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8DF
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 150 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8DF - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1G1	A	G1 — Control Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN2G3	A	G3 — Suppressor GridGroup 8DF2 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN2K	A	K — CathodeGroup 8DF2 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN3H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN4G3	A	G3 — Suppressor GridGroup 8DF4 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN4K	A	K — CathodeGroup 8DF4 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN5P	A	P — Plate (Anode) EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN6H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN7G2	A	G2 — Screen Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN8G5	A	G5 — Fifth GridGroup 8DF8 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF
PIN8K	A	K — CathodeGroup 8DF8 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 129, 8DF

Section ratings

2 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 420 V
Rectifier nominal output current: 4 mA
Rectifier peak forward current: 24 mA
Rectifier forward voltage drop: 10 V
Rectifier max heater-cathode voltage: 330 V

Two identical diode sections represented once.

Section 2

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Physical diode section added during approved section-structure reconciliation.

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

Diode

Other

RMS supply voltage per plate
150 V
HalfWave

Characteristic

Forward-voltage-drop test current
15 mA
HalfWave