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Voltage - Triode (single) ·Triode

6F5G

Glass high-mu triode for resistance-coupled audio-frequency voltage amplification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5M
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 300 mA

Description

Glass high-mu triode for resistance-coupled audio-frequency amplification. The supplied Raytheon page provides ratings and operating characteristics used for the technical extraction.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5M
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

5M - 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
66000 Ω
Transconductance
0.0015 S
Amplification factor
100
Max plate voltage
250 V

Glass-envelope high-mu triode for Class-A voltage-amplifier service.

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

Characteristics

  • Maximum Plate Voltage

    250 V

    Published table

Capacitance

  • Wy R Plate Voltage

    250 V

    Published table

  • Py ™ Amplification Factor

    100

    Published table

  • SMRLL Plate Resistance

    66000 ohm

    Published table

  • OCTAL BRSE Transconductance

    1500 uS

    Published table

  • [y + Plate Current

    0.9 mA

    Published table

  • Plate Supply Voltage

    250 V

    Published table; Column1

  • Plate Supply Voltage

    250 V

    Published table; Column2

  • Plate Resistor

    0.25 ohm

    Published table; Column1

  • Plate Resistor

    1 ohm

    Published table; Column2

  • Plate Resistor

    0.25 ohm

    Published table; Column3

  • Plate Resistor

    1 ohm

    Published table; Column4

  • Plate Current

    0.2 mA

    Published table; Column1

  • Plate Current

    0.4 mA

    Published table; Column2

  • Plate Current

    0.2 mA

    Published table; Column3

  • Plate Current

    0.4 mA

    Published table; Column4

  • Voltage Output (RMS) I

    11 V

    Published table; Column1

  • Voltage Output (RMS) I

    20 V

    Published table; Column2

  • Voltage Output (RMS) I

    14.5 V

    Published table; Column3

  • Voltage Output (RMS) I

    25.5 V

    Published table; Column4

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    250 V

    ClassA

  • Control-grid bias magnitude

    2 V

    ClassA

  • Plate current

    0.9 mA

    ClassA

  • Plate resistance

    66000 ohm

    ClassA

  • Transconductance

    1500 uS

    ClassA

  • Amplification factor

    100

    ClassA

  • Plate voltage

    100 V

    ClassA

  • Control-grid bias magnitude

    1 V

    ClassA

  • Plate current

    0.4 mA

    ClassA

  • Plate resistance

    85000 ohm

    ClassA

  • Transconductance

    1150 uS

    ClassA

  • Amplification factor

    100

    ClassA