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Power - TV Vertical Output ·Triode

6S4A

Miniature medium-mu triode designed as a vertical-deflection amplifier in color and monochrome television receivers. Its increased dissipation and high pulse-voltage capability support demanding sweep-output service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
EIA 9AC
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 600 mA

Description

Miniature type used as vertical-deflection amplifier in color and black-and-white television receivers. Outlines section, 6E; requires miniature 9-contact socket. 9AC

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
EIA 9AC
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

EIA 9AC - 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
3700 Ω
Transconductance
0.0045 S
Amplification factor
16.5
Max plate voltage
550 V
Max plate dissipation
8.5 W
Max cathode current
30 mA

Promoted average characteristics are the published 250 V values.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

  • Plate voltage

    250 V

    Typical operating conditions

Data set 02

1965 Westinghouse Data Book

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    600 mA

  • Plate Voltage

    250 V

  • Grid Voltage

    -8 V

  • Plate Current

    26 mA

  • Transconductance

    4500 uS

  • Amplification Factor

    16 ratio

  • Plate Resistance

    3600 ohm

Other

  • Maximum Plate Voltage

    500 V

    VerticalDeflection

  • Maximum Peak Positive Plate Voltage

    2200 V

    Pulse

  • Maximum Plate Dissipation

    7.5 W

  • Maximum Average Cathode Current

    30 mA

  • Maximum Peak Cathode Current

    105 mA

Data set 03

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    250 V

    ClassA

  • Heater_warmup_time

    11 s

    TVVerticalDeflection

Characteristic

  • Transconductance

    4500 uS

    ClassA

  • Plate_current

    30 mA

    TVVerticalDeflection

Capacitance

  • Input capacitance

    3 pF

    Section1

  • Output capacitance

    3 pF

    Section1

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Peak Positive Pulse Plate Voltage

    2200 V

    VerticalDeflection

  • Peak Negative Grid Voltage

    250 V

    VerticalDeflection

  • Peak Cathode Current

    105 mA

    VerticalDeflection

  • Plate Voltage

    250 V

    AverageCharacteristics

Data set 05

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • ~..~

    6.3 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Current — published value 1

    600 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Current — published value 2

    6 A

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Current — published value 3

    5 A

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid to plate

    2.4

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid to cathode and heater

    4.2

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate to cathode and heater

    0.6

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Voltage

    250 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid Voltage

    -8 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Resistance (Approx )

    3700 ohm

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Transconductance

    4500

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Current

    24 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Current for grid volts = -15 — published value 1

    -15 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Current for grid volts = -15 — published value 2

    4 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid Voltage (Approx.) for plate µa = 50 — published value 1

    50 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid Voltage (Approx.) for plate µa = 50 — published value 2

    -22 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 1 -Internal — published value 1

    1

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 1 -Internal — published value 2

    5

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Connection—

    6

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 2 -Cathode — published value 1

    2

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 2 -Cathode — published value 2

    1

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 3 -Grid — published value 1

    3

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 3 -Grid — published value 2

    8

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 4 -Heater — published value 1

    4

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 4 -Heater — published value 2

    1

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • 0 This rating is appl icable where the duration of the voltage pulse does

    0 V

    Pulse

Other

  • DC PLATE VOLTAGE

    550 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • PEAK POSITIVE-PULSE PLATE VOLTAGE°

    2200 V

    Pulse

  • PEAK NEGATIVE-PULSE GRID VOLTAGE

    250 V

    Pulse

  • PLATE DISSIPATION — published value 1

    8 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • PLATE DISSIPATION — published value 2

    5 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Heater negative with respect to cathode. 200 max

    200 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Heater positive with respect to cathode. 2004 max

    2004 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • For cathode—bias operation — published value 1

    2 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • For cathode—bias operation — published value 2

    2 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

Data set 06

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater Current

    0.6 ampere

    Published value from supplied target entry

  • Heater Warm-up Time (Average)

    11 seconds

    Published value from supplied target entry

  • Plate Voltage

    250 volts

    Published value from supplied target entry

  • Amplification Factor

    16.5

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    3700 ohms

    Published value from supplied target entry

  • Plate Current

    24

    Published value from supplied target entry

  • Plate Current for grid voltage of

    4 volts

    Published value from supplied target entry

  • Grid Voltage Approx.) for plate current of

    50

    Published value from supplied target entry

  • DC Plate Voltage

    550 volts

    Published value from supplied target entry

  • Peak Positive-Pulse Plate Voltage#

    2200 volts

    Published value from supplied target entry

  • Peak Negative-Pulse Grid Voltage

    250 volts

    Published value from supplied target entry

  • Peak Cathode Current

    105 mA

    Published value from supplied target entry

  • Average Cathode Current

    30

    Published value from supplied target entry

  • Plate Dissipation

    8.5 watts

    Published value from supplied target entry

  • Grid-Circuit Resistance, for cathode-bias operation

    2.2 megohms

    Published value from supplied target entry

  • # Pulse duration must not exceed

    2.5

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    12.6 VoltS

    Published value from supplied target entry

  • Heater Current

    0.15 ampere

    Published value from supplied target entry

  • Peak Heater-Cathode Voltage ±

    90 volts

    Published value from supplied target entry

  • Plate Voltage

    300 volts

    Published value from supplied target entry

  • Grid Voltage. Positive-bias value

    0 volts

    Published value from supplied target entry

  • Plate Dissipation

    1 watt

    Published value from supplied target entry

  • Grid Voltage —

    2 volts

    Published value from supplied target entry

  • Amplification Factor

    70

    Published value from supplied target entry

  • Plate Resistance (Approx. t

    44000 ohms

    Published value from supplied target entry

  • Transconductance

    11500 mhos

    Published value from supplied target entry

  • Plato Current

    2 mA

    Published value from supplied target entry

Capacitance

  • Grid to Plate

    2.4 pF

    Published value from supplied target entry

  • Grid to Cathode and Heater

    4.2 PF

    Published value from supplied target entry

  • Plate to Cathode and Heater

    0.6 pF

    Published value from supplied target entry

  • Dirtct Interelectrode Capacitances (Approx.) :° Unit No.l Unit No

    2

    Published value from supplied target entry

  • Grid to Plate

    2.8 pF

    Published value from supplied target entry

  • Grid to Cathode and Heater

    3.4 pF

    Published value from supplied target entry

  • Plate to Cathode and Heater

    3.2 pF

    Published value from supplied target entry