Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Rectifier - Damper Diode ·Rectifier

6AL3

Television horizontal-deflection damper diode designed for energy recovery, with high inverse-voltage capability and substantial repetitive forward-current handling.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9C6
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 1.55 A

Description

Miniature type used as damper tube in horizontal-de- flection circuits ofblack-and-white television receivers. Outlines section, 7D; requires miniature 9-contact socket. Socket terminals 1, 2, 3, 6, 7, and 8 should not be used as tie points. It is especially important that this tube, like other power-handling tubes, be ade- quately ventilated.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9C6
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
1.55 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9C6 - 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 W
Rectifier peak inverse voltage
7500 V
Rectifier nominal output current
220 mA
Rectifier peak forward current
550 mA
Rectifier max heater-cathode voltage
6600 V
Rectifier warm-up time
11 s

Damper rectifier; promoted from design-center ratings.

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

1959 Rogers

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Application

  • Application

    Television booster / damper service

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Peak inverse voltage maximum

    7500 V

    DamperDiode

  • Peak anode current maximum

    55 mA

    DamperDiode

  • Average anode current maximum

    22 mA

    DamperDiode

  • Application

    Booster/damper diode in television horizontal circuits

    Section1

Data set 03

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

    1.55 A

  • Peak inverse plate voltage

    7500 V

  • Peak plate current

    550 mA

  • DC plate current

    220 mA

  • Plate dissipation

    5 W

Capacitance

  • Plate-to-cathode-and-heater capacitance

    8.6 pF

  • Heater-to-cathode capacitance

    2 pF

Data set 04

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Transconductance

    2300

    Published value from supplied target entry

  • Load Resistance

    10000 ohms

    Published value from supplied target entry

  • Total Harmonic Distortion

    10

    Published value from supplied target entry

  • Peak Plate Current

    550 mA

    Published value from supplied target entry

  • Average Plate Current

    220 mA

    Published value from supplied target entry

  • Peak Heater-Cathode Voltage

    6600 volts

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    12.6 volts

    Published value from supplied target entry

  • Peak Inverse Plate Voltage

    330 volts

    Published value from supplied target entry

  • Peak Plate Current (Per Plate)

    54 mA

    Published value from supplied target entry

  • AC Plate Voltage per Plate (rms)

    117 volts

    Published value from supplied target entry

  • Min. Total Effective Plate-Supply Impedance per Plate

    300 ohms

    Published value from supplied target entry

  • Average Output Current per Plate

    9 mA

    Published value from supplied target entry

  • Heater Current

    0.45 ampere

    Published value from supplied target entry

  • Heater Warm-up Time (Average)

    11 seconds

    Published value from supplied target entry

Other

  • Max.-Sig. Power Output

    1.1 watts

    Published value from supplied target entry

  • Peak Inverse Plate Voltage* (Absolute maximum)

    7600

    Published value from supplied target entry

  • Peak Heater-Cathode Voltage ±

    30 volts

    Published value from supplied target entry