NF41

Very-broadband radar TR power-limiting cell protecting receiver crystals across approximately 7–11.5 GHz.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

Very-broad-band radar T.R. power-limiting cell for crystal protection from about 7 to 11.5 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
7000 MHz
Frequency maximum
11500 MHz
Breakdown power average
150 mW
Total leakage power average
60 mW
Spike leakage energy average
0.13 erg/pulse

Other

Maximum line/transmitter power
0.1 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
300 mW
Recovery time to 6 dB loss maximum
50 us
Primer operating voltage typical
190 V

Application

Application
Radar T.R. / receiver protection cell