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Voltage Dual Triode Pentode ·Pentode-Triode-Triode

11CF11

Color-television Compactron combining a frame-grid video-amplifier pentode with two high-transconductance triodes for wideband picture and associated signal-processing functions.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
-
Socket code
B12C
Base pins
12
Nominal heater
10.7 V / 600 mA

Description

The 11CF11 is a color-TV multifunction Compactron with a frame-grid video-amplifier pentode and high-transconductance triode sections.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B12C
Base pins
12
Nominal heater voltage
10.7 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

3 physical sections, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
490000 Ω
Transconductance
0.0212 S
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
5 W
Max screen dissipation
1 W

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
12400 Ω
Transconductance
0.0055 S
Amplification factor
69
Max plate voltage
330 V
Max plate dissipation
2 W

Triode Section 1 in source.

Section 3

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
9200 Ω
Transconductance
0.0063 S
Amplification factor
59
Max plate voltage
330 V
Max plate dissipation
1.5 W

Triode Section 2 in source.

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

  • Plate Voltage

    330 V

  • Plate Voltage

    330 V

  • Plate Voltage

    330 V

  • Plate Voltage

    40 V

  • Plate Voltage

    200 V

  • Plate Voltage

    -55611 V

  • Plate Voltage

    -55611 V

  • Plate Voltage

    -56811 V

  • Screen Voltage

    1 V

  • Screen Voltage

    -55611 V

  • Plate Dissipation

    50 W

  • Plate Dissipation

    2 W

  • Plate Dissipation

    1.5 W

  • ScreenDissipation

    1 W

  • Plate Current

    150 mA

  • Plate Current

    -55611 mA

  • Screen Current

    2 mA

  • Transconductance

    11 uS

  • Transconductance

    0 uS

  • Amplification Factor

    0

  • Plate Resistance

    490000 ohm

  • Plate Resistance

    12400 ohm

  • Plate Resistance

    9200 ohm

  • Grid Voltage

    0 V

  • Grid Voltage

    0 V

  • Grid Voltage

    100 V

  • Grid Voltage

    1 V

  • Grid Voltage

    -55611 V

  • Grid Voltage

    -55611 V

  • Plate Voltage

    200 V

    AverageCharacteristics

Capacitance

  • Input Capacitance

    4.7 pF

  • Input Capacitance

    2.8 pF

  • GridNumber1toPlateCapacitance

    0.13 pF

  • Input Capacitance

    12.3 pF

Characteristic

  • Plate Current

    27.5 mA

    AverageCharacteristics

  • Screen Current

    4.9 mA

    AverageCharacteristics

SECTION 2

Triode

Other

  • Plate Voltage

    200 V

    AverageCharacteristics

Characteristic

  • Plate Current

    7.1 mA

    AverageCharacteristics

SECTION 3

Triode

Other

  • Plate Voltage

    200 V

    AverageCharacteristics

Characteristic

  • Plate Current

    7.6 mA

    AverageCharacteristics