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Power - TV Horizontal Output (sweep) ·BeamPower

31LZ6

Heavy-duty Novar beam-power tube designed for color-television horizontal-deflection amplification, with approximately 30 W plate dissipation and plate ratings approaching 1 kV.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9QL
Socket code
-
Base pins
9
Nominal heater
31 V / 450 mA

Description

Novar beam-power tube used as a horizontal-deflection amplifier in color television receivers.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9QL
Socket code
-
Base pins
9
Nominal heater voltage
31 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9QL - 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
6000 Ω
Transconductance
0.011 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 Current

    450 mA

    Published in approved 31LZ6 target datasheet entry; Section1

  • Heater Warm-up Time

    11 seconds

    Published in approved 31LZ6 target datasheet entry; Section1

  • Grid No.l to Plate

    0.6 pF

    Published in approved 31LZ6 target datasheet entry; Section1

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

    22 pF

    Published in approved 31LZ6 target datasheet entry; Section1

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

    11 pF

    Published in approved 31LZ6 target datasheet entry; Section1

  • DC Plate Supply Voltage

    990 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • Peak Positive-Pulse Plate Voltage*

    7600 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • Peak Negative-Pulse late Voltage

    1100 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • DC Grid-No.3 Voltage"

    75 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • DC Grid-No.2 Voltage

    220 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • Peak Cathode Current

    1200 mA

    Published in approved 31LZ6 target datasheet entry; Section1

  • Average Cathode Current

    350 mA

    Published in approved 31LZ6 target datasheet entry; Section1

  • Grid-No.2 Input

    5 W

    Published in approved 31LZ6 target datasheet entry; Section1

  • Plate Dissipation"

    30 W

    Published in approved 31LZ6 target datasheet entry; Section1

  • Bulb Temperature (At hottest point)

    240 °C

    Published in approved 31LZ6 target datasheet entry; Section1

  • For cathode-bias operation

    1 MΩ

    Published in approved 31LZ6 target datasheet entry; Section1

  • For grid-leak-bias operation

    10 MΩ

    Published in approved 31LZ6 target datasheet entry; Section1

  • For fixed-bias operation

    0.47 MΩ

    Published in approved 31LZ6 target datasheet entry; Section1

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

    10 microseconds

    Published in approved 31LZ6 target datasheet entry; Section1

Characteristic

  • Plate Voltage 125 55

    176 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • Peak Positive-Pulse Plate Voltage#

    5000 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • Grid No.3 (Suppressor Grid) 30 30

    30 V

    Published in approved 31LZ6 target datasheet entry; Section1

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

    125 V

    Published in approved 31LZ6 target datasheet entry; Section1

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

    -25 V

    Published in approved 31LZ6 target datasheet entry; Section1

  • Plate Resistance (Approx.)

    6000 Ω

    Published in approved 31LZ6 target datasheet entry; Section1

  • Transconductance

    11000 µS

    Published in approved 31LZ6 target datasheet entry; Section1

  • Plate Current 800ft

    140 mA

    Published in approved 31LZ6 target datasheet entry; Section1

  • Grid-No.2 Current 56ff

    2 mA

    Published in approved 31LZ6 target datasheet entry; Section1

  • of

    1 mA

    Published in approved 31LZ6 target datasheet entry; Section1

  • of 1 mA — —125

    -50 V

    Published in approved 31LZ6 target datasheet entry; Section1