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Tube Tinker — Electron Tube Database
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Specialized - Traveling Wave ·TravelingWave

7638

Traveling-wave microwave amplifier providing broadband RF gain through interaction between an electron beam and a slow-wave structure.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 500 mA

Description

Unpackaged traveling-wave tube for broadband low-power microwave amplification from 7.0 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
6.3 V
Nominal heater current
500 mA
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

TravelingWave

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Promoted values are taken directly from the supplied datasheet; additional ratings, characteristics and operating points are preserved in TUBE_SECTION_PARAMETER.

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 Mullard

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Other

  • Anode1 voltage maximum

    200 V

  • Anode2 voltage maximum

    400 V

  • Helix voltage maximum

    1400 V

  • Collector voltage maximum

    1500 V

  • Collector current maximum

    600 uA

  • Collector dissipation maximum

    900 mW

  • Input signal maximum

    500 mW

  • Frequency minimum

    7 GHz

  • Frequency maximum

    11.5 GHz

  • Frequency

    9 GHz

  • Focus-electrode voltage

    -70 V

    f=9GHz

  • Anode1 voltage

    155 V

    f=9GHz

  • Anode2 voltage

    135 V

    f=9GHz

  • Helix voltage

    1250 V

    f=9GHz

  • Collector voltage

    1350 V

    f=9GHz

  • Collector current

    550 uA

    f=9GHz

  • Gain

    27 dB

    f=9GHz

  • Noise factor

    23 dB

    f=9GHz

  • Power output

    50 uW

    f=9GHz

Characteristics

  • Gain minimum

    20 dB

    LowPowerLevel

  • Noise factor maximum

    25 dB

  • Saturation output power maximum

    6 mW