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Power - TV Horizontal Output (sweep) ·Pentode

PL505

High-power line-output pentode designed for color-television horizontal-deflection circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9D
Base pins
9
Nominal heater
27 V / 300 mA

Description

High-power line-output pentode for color television horizontal-deflection circuits.

Socket description

Magnoval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

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

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

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
7000 V
Max plate dissipation
25 W
Max cathode current
500 mA

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when 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

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater voltage

    27 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

Other

  • Maximum plate dissipation

    25 W

    Published maximum rating

  • Maximum peak anode voltage

    7 kV

    Published quick-reference value

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Anode peak voltage Vap 7000 V

    7000 A

    Anode peak voltage Vap 7000 V

  • Cathode current Ik max. 500 mA

    500 a

    Cathode current Ik max. 500 mA

  • Anode dissipation Wa max. 25 W

    25 A

    Anode dissipation Wa max. 25 W

  • Anode dissipation Wy max. 25 W

    25 A

    Anode dissipation Wy max. 25 W

  • Anode + grid No. 2 dissipation (triode connected) Wa+Wg2 max. 26 W

    26 A

    Anode + grid No. 2 dissipation (triode connected) Wa+Wg2 max. 26 W

  • Anode dissipation Wa max. 34 W

    34 A

    Anode dissipation Wa max. 34 W

  • Anode + grid No. 2 dissipation (triode connected) Wa—i-Wg2 max. 35 W

    35 A

    Anode + grid No. 2 dissipation (triode connected) Wa—i-Wg2 max. 35 W