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Voltage - Dual Triode (similar) ·Triode-Triode

6113

High-mu twin triode for Class-A voltage-amplifier service, with two similar sections providing moderate transconductance and approximately 70 amplification factor.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
8BD
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 300 mA

Description

National Union 6113 dualtriode vacuum tube described in the approved datasheet for its stated amplifier, rectifier, indicator, or specialized electronic service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

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

8BD - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN12G1BG1 — Control Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN22PBP — Plate (Anode)

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN32KBK — Cathode

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN41G1AG1 — Control Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN51PAP — Plate (Anode)

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN61KAK — Cathode

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN7H—H — Heater

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN8H—H — Heater

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
44000 Ω
Transconductance
0.0016 S
Amplification factor
70
Max plate voltage
250 V

Promoted ratings/characteristics read from the approved National Union datasheet.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
44000 Ω
Transconductance
0.0016 S
Amplification factor
70
Max plate voltage
250 V

Second physical triode restored under current one-row-per-physical-section policy.

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

Triode

Other

  • Maximum plate voltage

    250 V

    Published handbook rating

  • Plate voltage

    250 V

    ClassA

  • Control-grid bias

    2 V

    ClassA

  • Plate current

    2.3 mA

    ClassA

Characteristic

  • Plate resistance

    44000 ohm

    Published handbook characteristic

  • Transconductance

    1600 µS

    Published handbook characteristic

  • Amplification factor

    70

    Published handbook characteristic

  • Heater/filament voltage

    6.3 V

    Published heater/filament rating

  • Heater/filament current

    300 mA

    Published heater/filament rating