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Power - Tetrode (NOT beam) ·Tetrode

E451

Directly heated double-grid power valve for output-amplifier service. Its construction and published operating data identify it as a power-output tetrode rather than a small-signal amplifier.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
4 V / 1.1 A

Description

E451 is listed in the supplied valve table as a double-grid power valve. Published operating and characteristic values were transcribed from its target row.

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
4 V
Nominal heater current
1.1 A
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

Tetrode

X-ray radiationInterelectrode capacitances
Plate resistance
6000 Ω

Published target-row operating and characteristic values reviewed.

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

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Plate voltage

    400 V

    Published European table row

  • Power output

    22.4 W

    Published European table row

  • Class-B plate voltage

    300 V

    ClassB TwoTubes

  • Class-B plate current

    48 mA

    ClassB TwoTubes

  • Class-B load resistance

    6000 ohm

    ClassB TwoTubes

  • Class-B power output

    16 W

    ClassB TwoTubes

  • Alternate Class-B plate voltage

    400 V

    ClassB TwoTubes

  • Alternate Class-B plate current

    56 mA

    ClassB TwoTubes

  • Alternate Class-B power output

    22.4 W

    ClassB TwoTubes

Characteristic

  • Plate resistance

    6000 ohm

    Published European table row

  • Heater/filament voltage

    4 V

    Published European table row

  • Heater/filament current

    1.1 A

    Published European table row