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Power - Triode ·Triode-Triode

6N6MG

Direct-coupled dual-triode power amplifier for Class-A and push-pull output service; structurally a dual triode rather than a triode-pentode.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
8
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 800 mA

Description

Direct-coupled duo-triode power amplifier for Class-A and push-pull output service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

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

8 - 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
24100 Ω
Transconductance
0.0024 S
Amplification factor
58
Max plate voltage
325 V

Electrical characteristics explicitly stated identical to 6B5.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
24100 Ω
Transconductance
0.0024 S
Amplification factor
58
Max plate voltage
325 V

Promoted from clearly identified printed ratings/characteristics; additional operating points and capacitances retained in TUBE_SECTION_PARAMETER.

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

1937 Raytheon Radio Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Input-plate voltage

    300 V

    ClassA

  • Input-plate current

    8 mA

    ClassA

  • Signal voltage RMS

    15 V

    ClassA

SECTION 2

Triode

Other

  • Output-plate voltage

    300 V

    ClassA

  • Output-plate current

    45 mA

    ClassA

  • Load resistance

    7000 Ω

    ClassA

  • Power output

    4 W

    ClassA

  • Output-plate voltage

    300 V

    ClassA;PushPull;TwoTubes

  • Output-plate current

    45 mA

    ClassA;PushPull;TwoTubes

  • Load resistance plate-to-plate

    10000 Ω

    ClassA;PushPull;TwoTubes

  • Power output

    10 W

    ClassA;PushPull;TwoTubes

Data set 02

1938 Triadyne

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • PlateCurrentOutput

    45 mA

    ClassA;OneTube;At 300 V

  • PlateCurrentInput

    8 mA

    ClassA;OneTube;At 300 V

  • Load Resistance

    7000 ohm

    ClassA;OneTube;At 300 V

  • Power Output

    4 W

    ClassA;OneTube;At 300 V

  • Power Output

    10 W

    PushPull;ClassA;TwoTubes;At 300 V