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Power - Triode (over 1000V 100W) ·Triode

7459

Forced-air-cooled high-power transmitting triode for FM and television broadcast service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 30 A

Description

7459 is listed in the supplied Amperex material as a forced-air-cooled transmitting triode for broadcast FM/TV service. Published electrical ratings and operating data were captured from the supplied table.

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
30 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.015 S
Amplification factor
32
Max plate voltage
6500 V
Max plate dissipation
4000 W

Published maximum ratings and general characteristics promoted from the supplied datasheet.

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

Triode

Other

  • Heater/Filament Voltage

    12.6 V

  • Heater/Filament Current

    30 A

  • Maximum Plate Voltage

    6500 V

  • Maximum Plate Dissipation

    4000 W

Characteristics

  • Transconductance

    15000 uS

  • Amplification Factor

    32

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater/filament voltage

    12.6 V

    Published rating

  • Heater/filament current

    30 A

    Published rating

  • Amplification factor

    32

    TransmittingService

Other

  • Maximum plate dissipation

    4000 W

    TransmittingService

  • Plate voltage

    6000 V

    TransmittingService

  • Plate current

    1.5 A

    TransmittingService

  • Power output

    6900 W

    TransmittingService

  • Grid bias

    -400 V

    TransmittingService

  • Grid current

    310 mA

    TransmittingService

  • Maximum frequency

    110 MHz

    FullInputWatts