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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

AX9907

High-power transmitting tetrode designed for RF power amplification, linear amplification, oscillation, modulation, or frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 33.5 A

Description

AX9907 is listed in the supplied Amperex power-tube table as a transmitting power tetrode, with published filament, dissipation, operating, output-power, and frequency data.

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
33.5 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
Amplification factor
7.5
Max plate voltage
4000 V
Max screen voltage
800 V
Max plate dissipation
3000 W

Electrical values extracted from the supplied source table; typical operating values are preserved in TUBE_SECTION_PARAMETER.

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

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Filament voltage

    6.3 V

    Published transmitting-tube rating

  • Filament current

    33.5 A

    Published transmitting-tube rating

  • Amplification factor

    7.5

    Published power-tube table

Other

  • Maximum plate dissipation

    5000 W

    Published power-tube table

  • Plate voltage

    4000 V

    TransmittingService

  • Plate current

    1.1 A

    TransmittingService

  • Power output

    3300 W

    TransmittingService

  • Grid bias

    -250 V

    TransmittingService

  • Grid current

    70 mA

    TransmittingService

  • Screen voltage

    800 V

    TransmittingService

  • Maximum frequency

    220 MHz

    FullInputWatts

  • Alternate plate voltage

    5000 V

    TransmittingService OperatingPoint2

  • Alternate plate current

    1.1 A

    TransmittingService OperatingPoint2

  • Alternate power output

    4100 W

    TransmittingService OperatingPoint2

  • Alternate grid bias

    -250 V

    TransmittingService OperatingPoint2

  • Alternate grid current

    70 mA

    TransmittingService OperatingPoint2

  • Alternate screen voltage

    800 V

    TransmittingService OperatingPoint2

  • Alternate maximum frequency

    75 MHz

    TransmittingService OperatingPoint2