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Power - TV Horizontal Output (sweep) ·BeamPower

42KN6

High-transconductance Duodecar beam pentode for horizontal-deflection output in color and monochrome televisions, with approximately 30 W plate dissipation and strong pulse-current capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
12GU
Socket code
B12C
Base pins
12
Nominal heater
42 V / 450 mA

Description

Duodecar beam pentode used as a horizontal-deflection amplifier in color and black-and-white television receivers.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12GU
Socket code
B12C
Base pins
12
Nominal heater voltage
42 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12GU - 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

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
4000 Ω
Transconductance
0.016 S
Amplification factor
4.5
Max plate voltage
770 V
Max screen voltage
330 V
Max plate dissipation
30 W
Max screen dissipation
5 W
Max cathode current
400 mA

Published maximum ratings and characteristics promoted semantically from the approved 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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Plate Resistance

    4000 ohm

  • Transconductance

    16000 µS

  • Amplification Factor

    4.5

Other

  • Maximum Plate Voltage

    6500 V

  • Maximum Screen Voltage

    330 V

  • Maximum Plate Dissipation

    30 W

  • Maximum Screen Dissipation

    5 W

  • Maximum Cathode Current

    400 mA

  • DC Plate Supply Voltage

    770 V

    Horizontal deflection; sections in parallel

  • Peak Positive Pulse Plate Voltage

    6500 V

    Horizontal deflection

  • Plate Current

    100 mA

    Average characteristics

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Heater Voltage 6.3

    42 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Heater Warm-up Time

    11 seconds

    Published in approved 6KN6 target datasheet entry; Section1

  • Plate Current — — 800 1

    100 mA

    Published in approved 6KN6 target datasheet entry; Section1

  • Grid-No.2 Current — — 50*

    4 mA

    Published in approved 6KN6 target datasheet entry; Section1

  • plate current of

    1 mA

    Published in approved 6KN6 target datasheet entry; Section1

  • plate current of 1 mA — — —

    33 V

    Published in approved 6KN6 target datasheet entry; Section1

  • DC Plate Supply Voltage

    770 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Peak Positive-Pulse Plate Voltage*

    6500 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Peak Negative-Pulse Plate Voltage

    1500 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Grid-No.2 Voltage

    220 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Peak Negative-Pulse Grid-No.l Voltage

    330 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Average Cathode Current

    400 mA

    Published in approved 6KN6 target datasheet entry; Section1

  • Peak Cathode Current

    1500 mA

    Published in approved 6KN6 target datasheet entry; Section1

  • Plate Dissipation*

    30 W

    Published in approved 6KN6 target datasheet entry; Section1

  • Grid-No.2 Input

    6 W

    Published in approved 6KN6 target datasheet entry; Section1

  • Grid-No.l-Circuit Resistance

    1 MΩ

    Published in approved 6KN6 target datasheet entry; Section1

  • # Pulse duration must not exceed 15% of one horizontal scanning cycle (

    10 microseconds

    Published in approved 6KN6 target datasheet entry; Section1

  • Heater Voltage (ac/dc) 6.3

    10.5 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Heater Current 0.7B

    450 mA

    Published in approved 6KN6 target datasheet entry; Section1

  • Heater Warm-up Time (Average)

    11 seconds

    Published in approved 6KN6 target datasheet entry; Section1

Characteristic

  • Plate Voltage 130 5500 60

    130 V

    Published in approved 6KN6 target datasheet entry; Section1

  • Grid-No.2 (Screen-Grid) Voltage 130 125 126

    130 V

    Published in approved 6KN6 target datasheet entry; Section1

  • —20 — 0

    -20 V

    Published in approved 6KN6 target datasheet entry; Section1