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Specialized - Traveling Wave ·TravelingWave

VA128

Varian designation for the 8232 pulsed traveling-wave amplifier, covering approximately 2.7–3.6 GHz with kilowatt-class peak microwave output.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
7.5 V / 2 A

Description

Varian VA-128 manufacturer designation for the 8232 traveling-wave pulse amplifier.

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
7.5 V
Nominal heater current
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

TravelingWave

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

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

1953 Varian Assoc

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

  • Frequency range minimum

    2.7 GHz

  • Frequency range maximum

    3.6 GHz

  • Peak output power

    9 kW

  • Heater warm-up time minimum

    180 s

Other

  • Beam voltage typical

    14.5 kV

  • Peak beam current typical

    3 A

  • Average output power maximum

    20 W

  • Drive power maximum

    15 W

  • Duty cycle maximum

    0.003

  • Pulse duration maximum

    15 us

Construction

  • Cooling method

    Forced air

  • Device type

    Traveling-wave pulse amplifier