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Power - Triode ·Triode-Triode

6AB6G

Triadyne dynamic-coupled power-output tube developed for automobile radios, with Class-A and push-pull operating data and reduced heater power.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
OCTAL7
Base pins
7
Nominal heater
6.3 V / 500 mA

Description

A Triadyne power-output tube developed for automobile radio service, similar in operating principle to the 6B5 while using a lower-current heater and smaller octal construction. Class A and push-pull operating data are provided.

Socket description

7-contact octal-family base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
OCTAL7
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
500 mA
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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
40000 Ω
Transconductance
0.0018 S
Amplification factor
72
Max plate voltage
250 V

Published characteristics describe the dynamic-coupled input/output structure.

Section 2

Triode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Second physical triode section; dissimilar common-cathode dual-triode structure per reviewed datasheet. Unsupported electrical values not duplicated.

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

1938 Triadyne

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • PlateCurrentOutput

    34 mA

    ClassA;OneTube

  • PlateCurrentInput

    5 mA

    ClassA;OneTube

  • Load Resistance

    8000 ohm

    ClassA;OneTube

  • Power Output

    3.5 W

    ClassA;OneTube

  • Power Output

    8 W

    PushPull;ClassA;TwoTubes

  • Power Output

    8 W

    PushPull;ClassAB;TwoTubes