Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Microwave Tube ·Microwave

BRC445

Alternate designation for the 6435 hermetically sealed 5.42 GHz beacon reference cavity used for radar local-oscillator frequency tuning.

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

Description

Hermetically sealed beacon reference cavity for waveguide mounting, used to tune radar local oscillators to beacon systems.

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

Microwave

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Representative electrical section; promoted values mapped from published ratings/characteristics 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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Microwave

Characteristic

  • Reference frequency at 0 C minimum

    5419.8 MHz

    Published datasheet value

  • Reference frequency at 65 C maximum

    5420.2 MHz

    Published datasheet value

  • Loaded Q minimum

    1300

    Published datasheet value