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Voltage Pentode - Sharp Cutoff (single) ·Pentode

4JC6

Sharp-cutoff pentode designed for television IF, picture-IF, video, or VHF tuner amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9PM
Socket code
B9A
Base pins
9
Nominal heater
4.5 V / 450 mA

Description

Frame-grid sharp-cutoff pentode for television IF amplifier stages.

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
9PM
Socket code
B9A
Base pins
9
Nominal heater voltage
4.5 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9PM - 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
180000 Ω
Transconductance
0.015 S
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
2.5 W
Max screen dissipation
0.7 W

Reference/equivalence-only source: ratings/characteristics for this section are not reproduced; missing promoted values intentionally not inferred from the external 6JC6 datasheet.

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

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    125 V

  • Screen-grid voltage

    125 V

  • Cathode bias resistor

    56 Ohm

  • Plate current

    13 mA

  • Screen-grid current

    3.2 mA

Characteristics

  • Plate resistance

    180000 Ohm

  • Transconductance

    15000 uS

Data set 02

1965 Westinghouse Data Book

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater Voltage

    4.5 V

  • Heater Current

    450 mA

Other

  • Maximum Plate Voltage

    330 V

  • Maximum Plate Dissipation

    2.5 W

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • HEATER WARMrUP TIME

    11 s

    Average Characteristics | HEATER WARMrUP TIME 11 SECONDS

  • PLATE VOLTAGE

    330 V

    Maximum Ratings | PLATE VOLTAGE 330 VOLTS

  • GRID

    330 V

    Maximum Ratings | GRID 2 SUPPLY VOLTAGE 330 VOLTS

  • POSITIVE GRID

    0 V

    Maximum Ratings | POSITIVE GRID 1 VOLTAGE 0 VOLTS

  • PLATE DISSIPATION

    2.5 W

    Maximum Ratings | PLATE DISSIPATION 2.5 WATTS

  • GRID

    165 V

    Maximum Ratings | GRID 2 DISSIPATION - UP TO 165 VOLTS 0.6 WATT

  • GRID

    0.6 W

    Maximum Ratings | GRID 2 DISSIPATION - UP TO 165 VOLTS 0.6 WATT

  • CATHODE-BIAS RESISTOR

    1 Mohm

    Maximum Ratings | CATHODE-BIAS RESISTOR 1 MEGOHM

  • FIXED BIAS

    0.25 Mohm

    Maximum Ratings | FIXED BIAS 0.25 MEGOHM

  • PLATE VOLTAGE

    125 V

    Maximum Ratings | PLATE VOLTAGE 125 VOLTS

  • GRID

    125 V

    Maximum Ratings | GRID 2 VOLTAGE 125 VOLTS

  • CATHODE-BIAS RESISTOR

    56 ohm

    Maximum Ratings | CATHODE-BIAS RESISTOR 56 OHMS

  • PLATE CURRENT

    13 mA

    Maximum Ratings | PLATE CURRENT 13 mA

  • GRID

    3.2 mA

    Maximum Ratings | GRID 2 CURRENT 3.2 mA

  • TRANSCONDUCTANCE

    15 uS

    Maximum Ratings | TRANSCONDUCTANCE 15.000 pMHOS

  • PLATE RESISTANCE

    0.18 Mohm

    Maximum Ratings | PLATE RESISTANCE 0.18 MEGOHM

  • GRID

    100 mA

    Maximum Ratings | GRID 1 VOLTAGE FOR Ib = 100 mA ~.0 VOLTS

  • GRID

    0 V

    Maximum Ratings | GRID 1 VOLTAGE FOR Ib = 100 mA ~.0 VOLTS

  • GRiD

    1 V

    Average Characteristics | GRiD 1 VOLTS

  • GRID

    2 V

    Average Characteristics | GRID 2 vOLTS

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater Voltage

    4.5 V

  • Heater Current

    450 mA

Data set 05

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    125 V

    IFAmplifier

  • Grid 2 voltage

    125 V

    IFAmplifier

  • Cathode bias resistor

    56 ohm

    IFAmplifier

  • Plate current

    13 mA

    IFAmplifier

  • Grid 2 current

    3.2 mA

    IFAmplifier

Characteristic

  • Heater warm-up time

    11 s

    ControlledWarmUp