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Voltage Dual Triode Pentode ·Pentode-Triode-Triode

6M11

Television Duodecar whose triodes serve sync-separator and AGC-amplifier circuits while the pentode provides intermediate-frequency amplification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
12CA
Socket code
B12C
Base pins
12
Nominal heater
6.3 V / 770 mA

Description

Duodecar type used in television receiver applications. The triode units are used in sync-separator and age- amplifier circuits; the pentode unit is used in if -ampli- fier circuits. Outlines section, 8B; requires duodecar 12-contact socket.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12CA
Socket code
B12C
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
770 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12CA - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
200000 Ω
Transconductance
0.013 S
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
3.1 W
Max screen dissipation
0.65 W

Full supplied entry reviewed for ratings, characteristics, operating data, and capacitances.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
10000 Ω
Transconductance
0.008 S
Amplification factor
58
Max plate voltage
330 V
Max screen voltage
125 V
Max plate dissipation
2.25 W

Full supplied entry reviewed for ratings, characteristics, operating data, and capacitances.

Section 3

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
10000 Ω
Transconductance
0.008 S
Amplification factor
58
Max plate voltage
330 V
Max plate dissipation
2.25 W

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Maximum Plate Voltage

    330 V

  • Maximum Screen Voltage

    330 V

  • Maximum Plate Dissipation

    3.1 W

  • Maximum Screen Dissipation

    0.65 W

Characteristic

  • Plate Resistance

    200000 ohm

  • Transconductance

    13000 uS

  • Interelectrode Capacitances Published

    true

SECTION 2

Triode

Other

  • Maximum Plate Voltage

    330 V

  • Maximum Plate Dissipation

    2.25 W

Characteristic

  • Plate Resistance

    10000 ohm

  • Transconductance

    8000 uS

  • Amplification Factor

    58

  • Interelectrode Capacitances Published

    true

SECTION 3

Triode

Other

  • Maximum Plate Voltage

    330 V

  • Maximum Plate Dissipation

    2.25 W

Characteristic

  • Plate Resistance

    10000 ohm

  • Transconductance

    8000 uS

  • Amplification Factor

    58

  • Interelectrode Capacitances Published

    true

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 2

Triode

Other

  • Heater Voltage (ac/dc)

    6.3

    Published value from supplied target entry

  • Heater Current

    0.77 ampere

    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

    2

    Published value from supplied target entry

  • Plate Dissipation

    3.1 watts

    Published value from supplied target entry

  • For voltages up to

    0.65 volts

    Published value from supplied target entry

  • For voltages between

    300 volts

    Published value from supplied target entry

  • Plate Supply Voltage

    125 volts

    Published value from supplied target entry

  • Grid-No

    125 volts

    Published value from supplied target entry

  • Amplification Factor

    58

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    200000 ohms

    Published value from supplied target entry

  • Transconductance

    13000

    Published value from supplied target entry

  • Plate Current

    11 mA

    Published value from supplied target entry

  • Grid-No

    3.4 mA

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    6.3 volts

    Published value from supplied target entry

  • Heater Current

    0.4 ampere

    Published value from supplied target entry

  • Heater Warm-up Time

    11 seconds

    Published value from supplied target entry

  • Plate Voltage

    280 volts

    Published value from supplied target entry

  • Grid-No

    280 volts

    Published value from supplied target entry

  • Grid-No

    300 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 volt

    Published value from supplied target entry

  • Plate Dissipation

    2 watts

    Published value from supplied target entry

  • Cathode Current

    20 mA

    Published value from supplied target entry

  • Grid-No

    0.5 watt

    Published value from supplied target entry

  • Plate Voltage

    125 volts

    Published value from supplied target entry

  • Grid-No.l Voltage

    0 volt

    Published value from supplied target entry

  • Plate Current

    8 mA

    Published value from supplied target entry

  • Grid-No

    2 mA

    Published value from supplied target entry

  • Transconductance

    12000

    Published value from supplied target entry

  • Amplification Factor

    40

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    125000 ohms

    Published value from supplied target entry

  • Grid-No.l Voltage for plate current of

    5 volts

    Published value from supplied target entry

  • Grid-No.l Voltage for plate current of

    3 volts

    Published value from supplied target entry

Capacitance

  • Grid to Plate

    1.8 PF

    Published value from supplied target entry

  • Plate to Cathode, Grid No

    2.8 pF

    Published value from supplied target entry