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Specialized - Traveling Wave ·TravelingWave

F4025B

Broadband traveling-wave amplifier covering 4–7 GHz, providing over 40 dB gain with approximately 20–40 mW saturated output.

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

Description

The F4025B is a broadband traveling-wave amplifier covering 4-7 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
-
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
900 V
Max cathode current
600 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

    4-7 GHz

  • Heater Voltage

    6.3 V

  • Heater Current

    0.4-0.6 A

  • Saturated Output Power

    0.02-0.04 W

  • Gain

    40+ dB

Other

  • Maximum High/Anode Voltage

    900 V

  • Warm-up Time

    120 s