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Voltage Triode Pentode ·Pentode-Triode

6MU8

Combined triode-pentode for television video, sync, burst, IF, AGC, or related signal-processing circuits.

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

Description

Miniature type used in color and black-and-white tele- vision receiver applications. The pentode unit is used in burst-amplifier circuits, and the triode unit as a general amplifier tube. Outlines section, 6E; requires miniature 9-contact socket. 9AE

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
600 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
Plate resistance
5800 Ω
Transconductance
0.006 S
Amplification factor
35
Max plate voltage
150 V
Max plate dissipation
2.5 W

Published promoted values applied where applicable; additional ratings, characteristics, and operating data retained as parameters.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
165000 Ω
Transconductance
0.009 S
Max plate voltage
330 V
Max screen voltage
300 V
Max plate dissipation
3.75 W

Published promoted values applied where applicable; additional ratings, characteristics, and operating data retained as parameters.

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

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage, ac or do

    6.3 V

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

  • Heater Current

    600 mA

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

  • Grid to plate — published value 1

    2.2 pF

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

  • Grid to plate — published value 2

    2.2 pF

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

  • Heater to cathode — published value 1

    4.4 pF

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

  • Heater to cathode — published value 2

    4.8 pF

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

  • Grid No. 1 to plate — published value 1

    1 pF

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

  • Grid No. 1 to plate — published value 2

    0.05 pF

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

  • Grid No. 1 to plate — published value 3

    0.05 pF

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

  • Amplification Factor

    35 A

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

  • Plate Resistance (Approx.) — published value 1

    5.8

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

  • Plate Resistance (Approx.) — published value 2

    165

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

  • Transconductance — published value 1

    6000

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

  • Transconductance — published value 2

    9000

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

  • DC Plate Current — published value 1

    11.5 mA

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

  • DC Plate Current — published value 2

    19 mA

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

  • DC Grid-No.2 Current

    4.2 mA

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

  • Heater Voltage — published value 1

    6.3 V

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

  • Heater Voltage — published value 2

    6.3 V

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

  • DC Plate Voltage — published value 1

    125 V

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

  • DC Plate Voltage — published value 2

    150 V

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

  • DC Grid-No.2 voltage

    150 V

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

  • DC Grid-No.l voltage . ~

    -1 V

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

  • Cathode Resistance

    150

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

  • DC Plate Voltage — published value 1

    330 V

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

  • DC Plate Voltage — published value 2

    330 V

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

  • Voltage

    330 V

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

  • Positive-bias value — published value 1

    0

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

  • Positive-bias value — published value 2

    0

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

  • No.2 voltages up to 165

    165 V

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

  • Plate Dissipation — published value 1

    2.5

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

  • Plate Dissipation — published value 2

    3.75

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

  • For fixed-bias operation — published value 1

    0.5

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

  • For fixed-bias operation — published value 2

    0.25

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

  • For cathode-bias operation Rgl — published value 1

    1

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

  • For cathode-bias operation Rgl — published value 2

    1

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

  • e With external shield JEDEC No. 315 connected to cathode of

    315

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

  • • As defined in the current issue of EIA Standard RS-239

    239

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

  • Pin 1 -Triode Plate

    1

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

  • Pin 4 -Heater

    4

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

  • JEDEC9AE

    9

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

  • GRID-NO. 2 INPUT RATING CHART

    2

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

Other

  • to triode plate — published value 1

    0.17 pF

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

  • to triode plate — published value 2

    0.2 pF

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

  • to triode plate — published value 1

    0.09 pF

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

  • to triode plate — published value 2

    0.008 pF

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

SECTION 2

Pentode

Characteristics

  • Pentode grid No. 1

    1

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

  • Pin 2 -Pentode Grid No.1

    2

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

  • Pin 3 -Pentode Grid No.2

    3

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

  • Pin 6 -Pentode Plate

    6

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

  • Pin 7 -Pentode Cathode,

    7

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

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater Voltage

    6.3 volts

    Published value from supplied target entry

  • Heater Current

    0.6 ampere

    Published value from supplied target entry

  • Heater Warm-up Time

    11 seconds

    Published value from supplied target entry

  • Heater to Triode Cathode

    4.4

    Published value from supplied target entry

  • Plate Voltage

    330 volts

    Published value from supplied target entry

  • Grid-No

    330 volts

    Published value from supplied target entry

  • Grid-No

    300

    Published value from supplied target entry

  • Grid-No.l (Control-Grid) Voltage, Positive-bias value

    0

    Published value from supplied target entry

  • Grid-No

    3.75 watts

    Published value from supplied target entry

  • Plate Dissipation —

    1.1 watts

    Published value from supplied target entry

  • Plate Voltage

    150 volts

    Published value from supplied target entry

  • Grid-No

    150 volts

    Published value from supplied target entry

  • Grid-No.l Voltage —

    1 volts

    Published value from supplied target entry

  • Plate Current

    19 mA

    Published value from supplied target entry

  • Grid-No

    4.2 mA

    Published value from supplied target entry

  • Transconductance

    9000

    Published value from supplied target entry

  • Amplification Factor

    35

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    5800 ohms

    Published value from supplied target entry

  • Grid-No

    1

    Published value from supplied target entry

  • Plate Dissipation

    2.5 watts

    Published value from supplied target entry

  • Grid-No

    0.55 watts

    Published value from supplied target entry

  • Plate Voltage

    125 volts

    Published value from supplied target entry

  • Grid-No

    125 volts

    Published value from supplied target entry

  • Grid-No

    1 volts

    Published value from supplied target entry

  • Plate Current

    13 mA

    Published value from supplied target entry

  • C.rid-No

    4 mA

    Published value from supplied target entry

  • Amplification Factor

    100

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    150000 ohms

    Published value from supplied target entry

  • Grid-No

    6 volts

    Published value from supplied target entry

Capacitance

  • Grid to Plate

    2.2 pF

    Published value from supplied target entry

  • Plate to Cathode, Heater, Grid No

    2

    Published value from supplied target entry

  • Heater to Pentode Cathode

    5.5 pF

    Published value from supplied target entry

  • Pentode Plate to Triode Plate

    0.09 pF

    Published value from supplied target entry