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Power - Beam (NOT sweep) ·BeamPower

QV0312

VHF beam-power tetrode designed for RF power amplification and frequency multiplication to approximately 175 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6 V / 750 mA

Description

The Mullard QV0312 is a vHF beam-power tetrode for RF power amplification and frequency multiplication.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
9
Nominal heater voltage
6 V
Nominal heater current
750 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
0.007 S
Amplification factor
16
Max plate voltage
300 V
Max screen voltage
250 V
Max plate dissipation
12 W
Max screen dissipation
2 W

VHF beam-power tetrode for RF power amplification and frequency multiplication.

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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristics

  • Heater/Filament Voltage

    6 V

  • Heater/Filament Current

    750 mA

  • Transconductance

    7000 uS

    RepresentativeSpecifiedOperatingPoint

  • Input Capacitance

    9.5 pF

  • Output Capacitance

    4.5 pF

Other

  • Maximum Operating Frequency

    175 MHz

    FullOrSpecifiedRatings

  • Maximum Plate Voltage

    300 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    12 W

  • Plate-Grid Capacitance Maximum

    0.3 pF

  • RF Output Power

    10 W

    RepresentativePublishedOperatingPoint

  • Frequency Multiplier Output Power

    3.6 W

    RepresentativePublishedOperatingPoint