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Power - TV Horizontal Output (sweep) ·BeamPower

PL521

Magnoval beam-power tube designed for television horizontal-deflection amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
40A
Socket code
B9D
Base pins
9
Nominal heater
29 V / 300 mA

Description

Magnoval beam-power tube for television horizontal-deflection amplifier service.

Socket description

Magnoval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
40A
Socket code
B9D
Base pins
9
Nominal heater voltage
29 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

40A - 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
Max plate voltage
6500 V
Max screen voltage
275 V
Max cathode current
275 mA

Promoted from semantically identified published ratings/characteristics; additional values preserved as section parameters.

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

  • Peak positive-pulse plate voltage

    6500 V

    HorizontalDeflection

  • Peak negative-pulse plate voltage

    1660 V

    HorizontalDeflection

  • Peak negative-pulse grid No.1 voltage

    330 V

    HorizontalDeflection

  • Grid No.1 circuit resistance

    2.2 megohm

    HorizontalDeflection

Characteristic

  • Plate voltage

    50 V

    ClassA

  • Screen-grid voltage

    200 V

    ClassA

  • Grid No.1 voltage

    -12 V

    ClassA

  • Plate current

    650 mA

    ClassA;RecurrentWaveform