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Power - Beam (NOT sweep) ·BeamPower

7457

Beam-power transmitting tube documented with service-specific frequency, power, operating, and cooling data for professional RF applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 3.2 A

Description

The 7457 is a beam-power transmitting tube. The supplied datasheet was processed for heater or filament data, maximum ratings, operating characteristics, capacitances where published, and service-specific power or frequency data.

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
6.3 V
Nominal heater current
3.2 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

Beam Power

X-ray radiationInterelectrode capacitances
Max plate voltage
1000 V
Max screen voltage
300 V
Max plate dissipation
115 W
Max cathode current
180 mA

Published ratings/characteristics promoted from 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

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Maximum DC Plate Voltage

    1000 V

    Ruggedized RF power service

  • Maximum DC Screen Voltage

    300 V

    Ruggedized RF power service

  • Maximum DC Plate Current

    180 mA

    Ruggedized RF power service

  • Plate Dissipation

    115 W

    Ruggedized RF power service

  • Typical DC Plate Voltage

    850 V

    Ruggedized RF power service

  • Maximum-Signal Power Output

    140 W

    Ruggedized RF power service

  • Useful Power Output at 1215 MHz

    40 W

    Ruggedized RF power service

Characteristics

  • Mu Factor, Screen to Control Grid

    18

    Ruggedized RF power service

  • Grid-No.1 to Plate Capacitance

    0.065 pF

    Ruggedized RF power service