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Rectifier - TV Line Scan Boost ·Rectifier

2AV2

Filamentary high-voltage rectifier for television flyback/EHT service. It rectifies horizontal-output transformer pulses to generate CRT accelerating voltage with a low-power filament at elevated potential.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9
Socket code
B9A
Base pins
9
Nominal heater
1.8 V / 225 mA

Description

Miniature half-wave vacuum rectifier used as a high-voltage, low-current pulse-operated focus rectifier in color television receivers.

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
9
Socket code
B9A
Base pins
9
Nominal heater voltage
1.8 V
Nominal heater current
225 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9 - 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
Rectifier peak inverse voltage
8250 V
Rectifier nominal output current
0.6 mA
Rectifier peak forward current
50 mA
Rectifier forward voltage drop
20 V
Rectifier max heater-cathode voltage
0.6 V

Promoted values are taken from the printed ratings on the uploaded source; additional non-promoted values are 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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • HeaterOrFilamentVoltageNominal

    1.8 V

  • HeaterOrFilamentCurrentNominal

    225 mA

  • RectifierMaximumPeakInverseVoltage

    7000 V

  • RectifierNominalOutputCurrent

    0.85 mA

  • RectifierMaximumHeaterCathodeVoltage

    0.6 V

Data set 02

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater/filament voltage

    1.8 V

  • Heater/filament current

    225 mA

  • Peak inverse plate voltage total DC plus peak

    8250 V

    PulsedRectifier

  • Maximum DC component of inverse plate voltage

    7000 V

    PulsedRectifier

  • Peak plate current

    50 mA

    PulsedRectifier

  • Average plate current

    0.6 mA

    PulsedRectifier

Characteristic

  • Tube voltage drop

    20 V

    PlateCurrent=1mA

Application

  • Application

    High-voltage half-wave pulsed rectifier

    TelevisionFlyback

Data set 03

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Filament Current

    225 mA

    Published in approved target datasheet entry

  • Peak Plate Current

    50 mA

    Published in approved target datasheet entry

  • Average Plate Current

    0.6 mA

    Published in approved target datasheet entry

  • Tube Voltage Drop for plate current of

    1 mA

    Published in approved target datasheet entry

  • Tube Voltage Drop for plate current of 1 mA

    20 V

    Published in approved target datasheet entry

Capacitance

  • Plate to Filament

    0.8 pF

    Published in approved target datasheet entry

Characteristic

  • not exceed

    7000 V

    Published in approved target datasheet entry

  • * Under no circumstances should the filament voltage be less than

    1.53 V

    Published in approved target datasheet entry