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Power - TV Horizontal Output (sweep) ·BeamPower

31JS6C

Duodecar beam-power tube for color and monochrome television horizontal-deflection amplification, with approximately 30 W plate dissipation and low plate resistance for powerful line-output operation.

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

Description

Duodecar beam-power tube 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
12FY
Socket code
B12C
Base pins
12
Nominal heater voltage
31.5 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12FY - 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
5500 Ω
Transconductance
0.0115 S
Max plate voltage
990 V
Max screen voltage
220 V
Max plate dissipation
30 W
Max cathode current
350 mA

Promoted from published ratings/characteristics where directly applicable; additional published values retained in TUBE_SECTION_PARAMETER.

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

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Heater Voltage (ac/dc) 6.3 23.6

    31.5 V

    Published in approved 31JS6C target datasheet entry; Section1

  • Heater Current 2.25 0.6

    450 mA

    Published in approved 31JS6C target datasheet entry; Section1

  • Heater Warm-up Tme (Average) a 1

    1 seconds

    Published in approved 31JS6C target datasheet entry; Section1

  • Plate Resistance (Approx.) _ _

    5500 Ω

    Published in approved 31JS6C target datasheet entry; Section1

  • Plate Current — — OOOv

    130 mA

    Published in approved 31JS6C target datasheet entry; Section1

  • current of

    1 mA

    Published in approved 31JS6C target datasheet entry; Section1

  • Peak Positive-Pulse Plate Voltage#

    7500 V

    Published in approved 31JS6C target datasheet entry; Section1

  • Peak Negative-Pulse Plate Voltage

    1200 V

    Published in approved 31JS6C target datasheet entry; Section1

  • DC Grid-No.2 Voltage

    220 V

    Published in approved 31JS6C target datasheet entry; Section1

  • Peak Negative-Pulse Grid-No. 1 Voltage

    330 V

    Published in approved 31JS6C target datasheet entry; Section1

  • Average Cathode Current

    350 mA

    Published in approved 31JS6C target datasheet entry; Section1

  • Peak Cathode Current

    1200 mA

    Published in approved 31JS6C target datasheet entry; Section1

  • Plate Dissipation"*

    30 W

    Published in approved 31JS6C target datasheet entry; Section1

  • Grid-No.2 Input

    5.5 W

    Published in approved 31JS6C target datasheet entry; Section1

  • Bulb Temperature (At hottest point)

    225 °C

    Published in approved 31JS6C target datasheet entry; Section1

  • For grid bias feedback HV regulation

    0.47 MΩ

    Published in approved 31JS6C target datasheet entry; Section1

  • For dc or pulse shunt HV regulation

    10 MΩ

    Published in approved 31JS6C target datasheet entry; Section1

  • # Pulse duration must not exceed 15',y of one horizontal scanning cycle (

    10 microseconds

    Published in approved 31JS6C target datasheet entry; Section1

Capacitance

  • Grid No.l to Cathode, Heater, Grid No.2, and Grid No.S

    24 pF

    Published in approved 31JS6C target datasheet entry; Section1

  • Plate to Cathode, Heater, Grid No.2, and Grid No.3

    10 pF

    Published in approved 31JS6C target datasheet entry; Section1

Characteristic

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

    125 V

    Published in approved 31JS6C target datasheet entry; Section1

  • Grid-No. 1 (Control-Grid) Voltage .... —25 — 0

    25 V

    Published in approved 31JS6C target datasheet entry; Section1