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Power - Tetrode (NOT beam) ·Tetrode

AX9910

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
12.6 V / 450 mA

Description

AX9910 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
12.6 V
Nominal heater current
450 mA
Parallel heater voltage
6.3 V
Parallel heater current
1.3 A
Series capable
Yes

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
Transconductance
0.0025 S
Amplification factor
8.5
Max plate voltage
600 V
Max screen voltage
250 V
Max plate dissipation
10 W
Max cathode current
55 mA

Two electrically identical tetrode sections; represented once per identical-section compression rule. Published values shown per section 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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum frequency

    600 MHz

    ClassC

  • Heater voltage series

    12.6 V

    Series

  • Heater current series

    450 mA

    Series

  • Heater voltage parallel

    6.3 V

    Parallel

  • Heater current parallel

    1.3 A

    Parallel

  • Peak cathode current per section

    260 mA

    PerSection

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Filament voltage

    12.6 V

    Published transmitting-tube rating

  • Filament current

    650 mA

    Published transmitting-tube rating

  • Amplification factor

    8.5

    Published power-tube table

  • Parallel filament voltage

    6.3 V

    ParallelHeater

  • Parallel filament current

    1.3 A

    ParallelHeater

Other

  • Maximum plate dissipation

    20 W

    Published power-tube table

  • Plate voltage

    600 V

    TransmittingService

  • Plate current

    100 mA

    TransmittingService

  • Power output

    42 W

    TransmittingService

  • Grid bias

    -60 V

    TransmittingService

  • Grid current

    1.4 mA

    TransmittingService

  • Screen voltage

    250 V

    TransmittingService

  • Maximum frequency

    300 MHz

    FullInputWatts

  • ICAS plate voltage

    750 V

    ICAS

  • ICAS plate current

    150 mA

    ICAS

  • ICAS power output

    79 W

    ICAS

  • ICAS grid bias

    -60 V

    ICAS

  • ICAS grid current

    2 mA

    ICAS

  • ICAS screen voltage

    250 V

    ICAS

  • ICAS maximum plate dissipation

    25 W

    ICAS