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Voltage - Triode (single) ·Triode

6L5G

Super-control triode intended for amplifier and detector service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
6Q
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 150 mA

Description

Super-control triode intended for amplifier and detector service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
6Q
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

6Q - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1SHASH — Internal Shield

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 127, 6Q

PIN2H—H — Heater

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 127, 6Q

PIN3PAP — Plate (Anode)

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 127, 6Q

PIN5G1AG1 — Control Grid

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 127, 6Q

PIN7H—H — Heater

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 127, 6Q

PIN8KAK — Cathode

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 127, 6Q

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
9000 Ω
Transconductance
0.0019 S
Amplification factor
17
Max plate voltage
250 V

Promoted from printed maximum-rating/characteristic columns; additional published operating points and capacitances retained as parameters.

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

  • Maximum plate voltage

    250 V

    Published datasheet rating

  • Plate voltage

    250 V

    ClassA

Characteristic

  • Plate resistance

    9000 ohm

    Published datasheet characteristic

  • Transconductance

    1900 µS

    Published datasheet characteristic

  • Amplification factor

    17

    Published datasheet characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    150 mA

    Published heater rating

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Input capacitance

    3 pF

    Section1

  • Output capacitance

    5 pF

    Section1

  • Grid-to-plate capacitance

    2.7 pF

    Section1

Other

  • Plate voltage

    250 V

    ClassA

  • Control-grid voltage

    -9 V

    ClassA

  • Plate current

    8 mA

    ClassA

Characteristic

  • Plate resistance

    9000 Ω

    ClassA

  • Transconductance

    1900 µS

    ClassA

  • Amplification factor

    17

    ClassA

Data set 03

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage

    250 V

    ClassA1

  • Grid Voltage

    -9 V

    ClassA1

Characteristic

  • Plate Current

    8 mA

    ClassA1