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Specialized - Switching Tube ·MicrowaveTRSwitch

NF40

Broadband radar TR protection cell for WG16 waveguide, operating approximately 8.95–9.6 GHz.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

Broad-band radar T.R. protection cell for WG16 waveguide, operating from about 8.95 to 9.6 GHz.

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
-
Nominal heater current
-
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

MicrowaveTRSwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published Ferranti ratings and characteristics promoted where applicable; additional electrical, pulse, regulator, microwave, and operating data retained as parameters.

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 Ferranti

Published operating points and test conditions from this source.

SECTION 1

MicrowaveTRSwitch

Characteristics

  • Frequency minimum

    8950 MHz

  • Frequency maximum

    9600 MHz

  • Breakdown power average

    1200 mW

  • Total leakage power average

    12 mW

  • Spike leakage energy average

    0.12 erg/pulse

Other

  • Maximum line/transmitter power

    10 kW

  • Primer supply voltage maximum

    -1500 V

  • Primer supply voltage minimum

    -950 V

  • Primer current maximum

    150 uA

  • Primer current minimum

    100 uA

  • Breakdown power limit

    2000 mW

  • Total leakage power limit

    20 mW

  • Spike leakage energy limit

    0.2 erg/pulse

  • Recovery time to 6 dB loss maximum

    50 us

  • Primer operating voltage typical

    200 V

Application

  • Application

    Radar T.R. / receiver protection cell