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Voltage - Triode (single) ·Triode

6J5G

Glass-octal general-purpose triode for amplifier, detector, and oscillator service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 300 mA

Description

Glass octal general-purpose triode for amplifier, detector, or oscillator service, with reduced plate resistance versus the 6C5 family.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
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

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
7700 Ω
Transconductance
0.0026 S
Amplification factor
20
Max plate voltage
300 V
Max plate dissipation
2.5 W

Published ratings, characteristics and operating tables reviewed.

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

  • Plate current

    9 mA

    ClassA

Characteristic

  • Plate resistance

    7700 ohm

    Published datasheet characteristic

  • Transconductance

    2600 µS

    Published datasheet characteristic

  • Amplification factor

    20

    Published datasheet characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    300 mA

    Published heater rating

Data set 02

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Resistance

    7700 ohm

  • Transconductance

    2600 µS

  • Amplification Factor

    20

Other

  • Maximum Plate Voltage

    300 V

  • Maximum Plate Dissipation

    2.5 W

  • Plate Voltage

    250 V

    ClassA

  • Grid Voltage

    -8 V

    ClassA

  • Plate Current

    9 mA

    ClassA