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Voltage - Triple Triode ·Triode-Triode-Triode

6J9

Triple triode designed to combine RF amplifier, oscillator, and mixer functions throughout the VHF range.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 450 mA

Description

Triple triode designed to combine RF amplifier, oscillator, and mixer functions through the VHF range.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
450 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

3 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
11000 Ω
Transconductance
0.0052 S
Amplification factor
57
Max plate voltage
330 V
Max plate dissipation
2 W

Published maximum ratings and characteristics promoted semantically from the approved source.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
11000 Ω
Transconductance
0.0052 S
Amplification factor
57
Max plate voltage
330 V
Max plate dissipation
2 W

Physical triode section; electrically identical triple-triode section.

Section 3

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
11000 Ω
Transconductance
0.0052 S
Amplification factor
57
Max plate voltage
330 V
Max plate dissipation
2 W

Physical triode section; electrically identical triple-triode section.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Resistance

    11000 ohm

  • Transconductance

    5200 µS

  • Amplification Factor

    57

Other

  • Maximum Plate Voltage

    330 V

  • Maximum Plate Dissipation

    2 W

  • Plate Voltage

    125 V

    ClassA; each section

  • Plate Current

    6 mA

    ClassA; each section