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Power - Pentode (NOT beam) ·Pentode-Triode

6JE8

Dissimilar high-mu triode and sharp-cutoff pentode designed for color-television sync-separator, voltage-amplifier, and video-amplifier service, integrating control and wideband amplification in one tube.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 780 mA

Description

Dissimilar high-mu triode and sharp-cutoff pentode for color-TV sync-separator, voltage-amplifier, and video-amplifier service.

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
780 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0042 S
Amplification factor
70
Max plate voltage
300 V

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

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
140000 Ω
Transconductance
0.012 S
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
5 W
Max screen dissipation
2 W

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

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

  • Transconductance

    4200 µS

  • Amplification Factor

    70

Other

  • Maximum Plate Voltage

    300 V

  • Plate Current

    4.5 mA

    Triode section

SECTION 2

Pentode

Characteristic

  • Plate Resistance

    140000 ohm

  • Transconductance

    12000 µS

Other

  • Maximum Plate Voltage

    330 V

  • Maximum Screen Voltage

    330 V

  • Maximum Plate Dissipation

    5 W

  • Maximum Screen Dissipation

    2 W

  • Plate Current

    22 mA

    Pentode video amplifier

  • Screen Current

    4 mA

    Pentode video amplifier