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Voltage Triode Pentode ·Pentode-Triode

6HL8

Medium-mu triode plus sharp-cutoff pentode for television sync, video, and amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
9AE
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 600 mA

Description

Medium-mu triode plus sharp-cutoff pentode for television sync, video, and 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
9AE
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9AE - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN12PBP — Plate (Anode)

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN21G1AG1 — Control Grid

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN31G2AG2 — Screen Grid

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN4H—H — Heater

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN5H—H — Heater

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN61PAP — Plate (Anode)

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN71G3AG3 — Suppressor GridGroup 9AE7

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN7ISAIS — Internal ScreenGroup 9AE7

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN71KAK — CathodeGroup 9AE7

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN82KBK — Cathode

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

PIN92G1BG1 — Control Grid

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9AE

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
5000 Ω
Transconductance
0.007 S
Amplification factor
40
Max plate voltage
330 V
Max plate dissipation
2.5 W

Published maximum ratings and characteristic values promoted where applicable; additional table values retained in TUBE_SECTION_PARAMETER.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
150000 Ω
Transconductance
0.01 S
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
2.5 W
Max screen dissipation
0.55 W

Published maximum ratings and characteristic values promoted where applicable; additional table values retained in TUBE_SECTION_PARAMETER.

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

Triode

Characteristic

  • Plate resistance

    5000 ohm

  • Transconductance

    7000 uS

  • Amplification factor

    40

Other

  • Maximum plate voltage

    330 V

  • Maximum plate dissipation

    2.5 W

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

  • Typical plate voltage

    125 V

  • Typical plate current

    12.5 mA

SECTION 2

Pentode

Characteristic

  • Plate resistance

    150000 ohm

  • Transconductance

    10000 uS

Other

  • Maximum plate voltage

    330 V

  • Maximum plate dissipation

    2.5 W

  • Maximum screen-grid dissipation

    0.55 W

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

  • Typical plate current

    12 mA

  • Typical screen-grid current

    4.5 mA

Data set 02

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    150 V

    ClassA

  • Maximum plate voltage

    330 V

  • Heater negative with respect to cathode

    200 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Heater positive with respect to cathode

    200 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Voltage — published value 1

    330 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Voltage — published value 2

    330 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Supply Voltage

    330 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Positive-bias value — published value 1

    0 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Positive-bias value — published value 2

    0 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Dissipation — published value 1

    2.5 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Dissipation — published value 2

    2.5 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • For fixed-bias operation — published value 1

    1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • For fixed-bias operation — published value 2

    0.25 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • For self-bias operation — published value 1

    1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • For self-bias operation — published value 2

    1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Characteristics

  • Voltage (AC or DC) — published value 1

    6.3 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Voltage (AC or DC) — published value 2

    0.68 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Current at heater volts = 6.3 — published value 1

    6.3 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Current at heater volts = 6.3 — published value 2

    0.6006 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Warm-up time (Average)

    11

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 -Triode Plate

    1

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 4 -Heater

    4

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 5 -Heater

    5

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 8 -Triode Cathode

    8

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 9 -Triode Grid

    9

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate voltage — published value 1

    125 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate voltage — published value 2

    125 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid-No.2 Voltage

    125 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid-No.1 Voltage — published value 1

    -1 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid-No.1 Voltage — published value 2

    -1 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Resistance (Approx.) — published value 1

    5000 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Resistance (Approx.) — published value 2

    150000 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Transconductance — published value 1

    7000

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Transconductance — published value 2

    10000

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Current — published value 1

    12.5 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Current — published value 2

    12 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid-No.2 Current

    4.5 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • for plate µa = 20 — published value 1

    20 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • for plate µa = 20 — published value 2

    -7 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • dnd 330 volts

    330 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • b For series neater operation current must De limited to 0.600 t 0.0 u0 — published value 1

    0.6

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • b For series neater operation current must De limited to 0.600 t 0.0 u0 — published value 2

    0

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

SECTION 2

Pentode

Other

  • Plate voltage

    200 V

    ClassA

  • Maximum plate voltage

    330 V

  • Maximum screen-grid voltage

    330 V

Characteristics

  • Pin 2 - Pentode Grid No.l

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 3 -Pentode Grid No.2

    3

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 6 -Pentode Plate

    6

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 7 - Pentode Cathode,

    7

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Data set 03

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Voltage

    330 volts

    Plate Voltage 330 330 volts

  • Grid-No

    330 volts

    Grid-No.2 (Screen-Grid) Supply Voltage - 330 volts

  • Grid-No

    2

    Grid-No.2 Voltage

  • For grid-No

    165 volts

    For grid-No.2 voltages up to 165 volts

  • For grid-No

    330 volts

    For grid-No.2 voltages between 165 and 330 volts

  • Plate Voltage

    125 volts

    Plate Voltage 125 125 volts

  • Grid-No

    125 volts

    Grid-No.2 Voltage 125 volts

  • Grid-No.l Voltage

    -1 volt

    Grid-No.l Voltage 1 --1 volt

  • Amplification Factor

    40

    Amplification Factor 40

  • Plate Resistance (Approx.)

    150000 ohms

    Plate Resistance (Approx.) 5000 150000 ohms

  • Transconductance

    10000

    Transconductance 7000 10000 /imhos

  • Plate Current

    12 mA

    Plate Current 12.5 12 mA

  • Grid-No

    2

    Grid-No.2 Current

  • Grid-No.l-Circuit Resistance

    1 megohm

    Grid-No.l-Circuit Resistance 1 - megohm

Other

  • Plate Dissipation

    2.5 watts

    Plate Dissipation 2.5 2.5 watts

  • Grid-No

    2

    Grid-No.2 Input:

SECTION 2

Pentode

Other

  • amperes,

    11 amperes

    amperes, 0.6; warm-up time (average), 11 seconds; PT gt