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

Specialized - Traveling Wave ·TravelingWave

TH3521

Long-life traveling-wave amplifier for high-capacity line-of-sight microwave links around 11 GHz, providing approximately 20 W output and high gain.

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

Description

Long-life TWT for high-capacity line-of-sight microwave links.

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
5.5 V
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

TravelingWave

X-ray radiationInterelectrode capacitances
Max plate voltage
4000 V
Max cathode current
50 mA

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

1972 Thomson CSF

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

  • Frequency Range

    10.7-11.7 GHz

  • Heater Voltage

    5.5 V

  • Heater Current

    0.4-0.8 A

  • RF Output Power

    20 W

  • Gain

    40 dB

  • Helix Voltage

    3.75 kV

  • Collector Voltage

    1.75 kV

  • Gain

    40 dB

Other

  • Maximum Helix/Beam/Anode Voltage

    4000 V

  • Cathode/Beam Current

    50 mA

  • Warm-up Time

    3 min