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Power - Beam Single (NOT sweep) (under 10W) ·BeamPower

QV047

Beam tetrode designed for RF amplification or frequency multiplication to approximately 150 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

The Mullard QV047 is a beam tetrode for RF amplification or frequency multiplication to 150 MHz.

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
6.3 V
Nominal heater current
600 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

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.0019 S
Max plate voltage
400 V
Max screen voltage
250 V
Max plate dissipation
7.5 W

Published ratings and characteristics promoted semantically from the approved source; repeated identical physical sections compressed where 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

1951 Mullard Valve and Service Manual

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Operating Frequency Maximum

    150 MHz

  • Plate Voltage

    300 V

    ClassC

  • Power Output

    8.1 W

    ClassC,3MHz

  • Frequency Multiplier Output

    5.6 W

    FrequencyDoubler,75MHz

Data set 02

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristics

  • Heater/Filament Voltage

    6.3 V

  • Heater/Filament Current

    600 mA

  • Transconductance

    1900 uS

    RepresentativeSpecifiedOperatingPoint

  • Input Capacitance

    8 pF

  • Output Capacitance

    5.4 pF

Other

  • Maximum Operating Frequency

    150 MHz

    FullOrSpecifiedRatings

  • Maximum Plate Voltage

    400 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    7.5 W

  • Plate-Grid Capacitance Maximum

    0.1 pF

  • RF Output Power

    15.6 W

    RepresentativePublishedOperatingPoint

  • Frequency Tripler Output Power

    3.3 W

    RepresentativePublishedOperatingPoint