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Rectifier - Damper Diode ·Rectifier

6AX3

Duodecar half-wave vacuum rectifier designed for television horizontal-deflection damper service, with approximately 5 kV inverse-voltage and 1 A peak-current capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
12BL
Socket code
B12C
Base pins
12
Nominal heater
6.3 V / 1.2 A

Description

Duodecar half-wave damper rectifier for television horizontal-deflection circuits. It is a high-voltage half-wave vacuum rectifier intended for CRT horizontal-deflection damper service.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12BL
Socket code
B12C
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
1.2 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12BL - 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

Rectifier

X-ray radiationInterelectrode capacitances
Max plate dissipation
5.3 W
Rectifier peak inverse voltage
5000 V
Rectifier nominal output current
165 mA
Rectifier peak forward current
1 A
Rectifier forward voltage drop
32 V
Rectifier max heater-cathode voltage
5000 V
Rectifier warm-up time
11 s

Promoted from published ratings/characteristics; identical repeated sections compressed where applicable.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater voltage

    6.3 V

  • Heater current

    1.2 A

Data set 02

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Peak inverse plate voltage maximum

    5000 V

    TVDamper

  • Plate dissipation maximum

    5.5 W

    TVDamper

  • Steady-state peak plate current maximum

    1000 mA

    TVDamper

  • DC output current maximum

    175 mA

    TVDamper

  • Application

    Horizontal-deflection damping diode in television receivers

    Section1

Characteristic

  • Tube voltage drop

    32 V

    SpecifiedPlateCurrent

Data set 03

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Steady-State Peak Plate Current

    1000 mA

    TVDamper

Data set 04

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater voltage nominal

    6.3 V

  • Heater current

    1.2 A

  • Peak inverse plate voltage

    5000 V

    DamperService

  • Peak plate current

    1000 mA

    DamperService

  • DC plate current

    165 mA

    DamperService

  • Plate dissipation

    5.3 W

    DamperService

Characteristics

  • Tube voltage drop at 250 mA

    32 V

    DamperService

Data set 05

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

  • Plate-to-cathode and heater capacitance

    5.5 pF

  • Cathode-to-plate and heater capacitance

    7.5 pF

  • Heater-to-cathode capacitance

    2.8 pF

Other

  • Peak inverse plate voltage

    5000 V

    DamperService

  • Peak plate current

    1000 mA

    DamperService

  • Average plate current

    165 mA

    DamperService

  • Plate dissipation

    5.3 W

    DamperService

  • Tube voltage drop

    32 V

    DamperService