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Voltage Pentode ·Pentode

D2F

Pentode designed for ultra-short-wave radio-frequency amplification in receiving equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
1.4 V / 240 mA

Description

Pentode vacuum tube documented for ultra-short-wave applications, with heater, operating-characteristic, and limiting-rating data extracted from the supplied datasheet.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
1.4 V
Nominal heater current
240 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
250 V
Max plate dissipation
2.5 W

Primary physical section.

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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater voltage

    1.4 V

    Nominal

  • Heater current

    240 mA

    Nominal

Characteristic

  • Chauffage direct, pax courant de batterie, Vf

    1 V

    Published datasheet value

  • alimentation en parallele If

    0 mA

    Published datasheet value

  • A. Daten zur Verwendung a1

    8 S

    Published datasheet value

  • Montage penthode,

    2 s

    Published datasheet value

  • Pentode connection,

    2 s

    Published datasheet value

  • Va

    250 V

    Published datasheet value

  • Vgl (ca.; any.; approx

    -22 V

    Published datasheet value

  • Vgl

    250 V

    Published datasheet value

  • Iä

    31 mA

    Published datasheet value

  • Ig1

    1 mA

    Published datasheet value

  • Ig2 (ea.; env.; approx

    6 mA

    Published datasheet value

  • Vgl9 (ca.; env.; approx

    2 V

    Published datasheet value

  • gl

    0.015 W

    Published datasheet value

  • Wi

    4 W

    Published datasheet value

  • Wo

    6 W

    Published datasheet value

  • Wg2

    1.5 W

    Published datasheet value

  • Montage penthode,

    2 s

    Published datasheet value

  • Pentode connection,

    2 s

    Published datasheet value

  • Va

    250 V

    Published datasheet value

  • Vgl (ca.; env.; approx

    -22 V

    Published datasheet value

  • Vg2

    8 V

    Published datasheet value

  • Ia3

    1 mA

    Published datasheet value

  • Vg2p (ca.; env.; approx

    9 V

    Published datasheet value

  • Whr pa.; env.; approx

    0.026 W

    Published datasheet value

  • Wlf

    1 W

    Published datasheet value

  • Wa

    5 W

    Published datasheet value

  • Wo

    6 W

    Published datasheet value

  • Wg2

    0.78 W

    Published datasheet value