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Specialized - Magnetron ·Magnetron

6J21

Tunable magnetron for continuous-wave or modulated microwave operation over approximately 2.5–3.55 GHz with kilowatt-class output.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B9A
Base pins
-
Nominal heater
5.6 V / 17.2 A

Description

Tunable magnetron for CW or modulated microwave operation over approximately 2.5 to 3.55 GHz, with kilowatt-class output ratings.

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
-
Nominal heater voltage
5.6 V
Nominal heater current
17.2 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

Magnetron

X-ray radiationInterelectrode capacitances
Max plate voltage
6000 V
Max plate dissipation
1000 W
Max cathode current
1 A

Tunable UHF magnetron for CW or modulated operation.

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

1945 Litton Industries

Published operating points and test conditions from this source.

SECTION 1

Magnetron

Characteristic

  • Frequency Range

    2500 to 3550 MHz

    Continuously tuned

Other

  • Typical Anode Voltage

    5000 V

    CW or modulated

  • Typical Average Anode Current

    300 mA

    CW or modulated

  • Typical Power Output

    800 W

    CW or modulated

  • Maximum Anode Voltage

    - to 6000 V

  • Maximum Peak Anode Current

    - to 1 A

  • Maximum Average Anode Current

    - to 400 mA

  • Maximum Anode Dissipation

    - to 1000 W

  • Maximum Power Output

    - to 1000 W