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Voltage - Triode (single high frequency) ·Triode

6BC4

High-frequency triode for UHF/VHF amplification, mixing, or oscillator service in television, FM, communications, or specialized RF equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9DR
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 225 mA

Description

Miniature medium-mu triode designed as an RF amplifier in cathode-drive UHF television tuners covering approximately 470 to 890 MHz.

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
9DR
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
225 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9DR - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1PAP — Plate (Anode)

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN2G1AG1 — Control Grid

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN3G1AG1 — Control Grid

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN4H—H — Heater

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN5H—H — Heater

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN6KAK — Cathode

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN7G1AG1 — Control Grid

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN8G1AG1 — Control Grid

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

PIN9PAP — Plate (Anode)

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DR

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
4800 Ω
Transconductance
0.01 S
Amplification factor
48
Max plate voltage
250 V
Max plate dissipation
2.5 W
Max cathode current
25 mA
Rectifier max heater-cathode voltage
75 V

Published promoted fields populated semantically; identical repeated sections compressed where applicable.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    150 V

    ClassA; OperatingPoint1

  • Cathode resistor

    100 ohm

    ClassA; OperatingPoint1

  • Plate current

    14.5 mA

    ClassA; OperatingPoint1

  • Plate resistance

    4800 ohm

    ClassA; OperatingPoint1

  • Transconductance

    10000 uS

    ClassA; OperatingPoint1

  • Amplification factor

    48

    ClassA; OperatingPoint1

Characteristics

  • Input capacitance

    2.9 pF

  • Grid-to-plate capacitance

    0.26 pF

  • Output capacitance

    1.6 pF

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage

    150 V

    Typical

Characteristic

  • Plate Current

    12 mA

    Typical

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Grid-to-plate capacitance

    1.6 pF

    Section1

  • Grid-to-heater-and-cathode capacitance

    2.9 pF

    Section1

  • Plate-to-heater-and-cathode capacitance

    0.26 pF

    Section1

Other

  • Plate voltage

    150 V

    UHFRFAmplifier

  • Plate current

    15 mA

    UHFRFAmplifier

  • Application

    Cathode-drive RF amplifier, 470 to 890 MHz television tuner

    Section1

Characteristic

  • Transconductance

    9000 µS

    Section1

Data set 04

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Voltage fi. ac or do

    3 V

  • Current

    225 mA

Capacitance

  • Grid to plate

    1.6 pF

  • Grid fo heater and cathode

    2.9 pF

  • Plate to heater and cathode

    0 pF

    PublishedColumn1

  • Plate to heater and cathode

    26 pF

    PublishedColumn2

  • Heater to cathode

    2.7 pF

  • Plate Supply Voltage

    150 V

  • Cathode-Bias Resistor

    160 ohm

  • Plate Resistance

    4800 ohm

  • Transconductance

    10000 µS

  • current of µamp

    10 V

    PublishedColumn1

  • current of µamp

    -10 V

    PublishedColumn2

  • Plate Current

    14.5 mA

  • PLATE VOLTAGE max

    250 V

  • PLATE DISSIPATION max

    2.5 W

  • CATHODE CURRENT max,

    25 mA

  • Neater negative with respect to cathode . max

    75 V

  • Heater positive with respect to cathode . max

    75 V

  • For cathode—bias operation max

    0 Mohm

    PublishedColumn1

  • For cathode—bias operation max

    5 Mohm

    PublishedColumn2

Characteristics

  • ■ Ef=

    6.3 V

Data set 05

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Grid-to-plate capacitance

    1.6 pF

  • Grid-to-heater/cathode capacitance

    2.9 pF

  • Plate-to-heater/cathode capacitance

    0.26 pF

  • Heater-to-cathode capacitance

    2.7 pF

Other

  • Plate supply voltage

    150 V

    ClassA

  • Cathode-bias resistor

    100 ohm

    ClassA

  • Plate current

    14.5 mA

    ClassA