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Specialized - Traveling Wave ·TravelingWave

F2085

Rugged metal-ceramic PPM-focused traveling-wave power amplifier covering 7–11 GHz, delivering at least approximately 1 kW peak output.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 3.1 A

Description

The F-2085 is a rugged metal-ceramic, PPM-focused traveling-wave amplifier covering 7–11 GHz with at least 1 kW peak output and 34 dB gain.

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
3.1 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
Max plate voltage
11000 V
Max cathode current
1.7 A

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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

  • Frequency Range

    7.0-11.0 GHz

  • Gain at 1 kW Peak Power Minimum

    34 dB

  • Small-Signal Gain Minimum

    40 dB

  • Heater Voltage

    6 to 6.6 V

  • Heater Current

    3 A to 4 A

  • Grid Bias Voltage

    -200 to -90 V

  • Grid Pulse Voltage

    160 to 270 V

Other

  • Peak Output Power Typical

    1200 W

  • Peak Output Power Minimum

    1000 W

  • Maximum Duty Cycle

    0.01

  • Maximum Pulse Width

    10 us

  • Cathode Voltage

    -11 to -9.5 kV

  • Cathode Current Peak

    - to 1.7 A

  • Grid Current Peak

    - to 400 mA

Capacitance

  • Grid Capacitance to All

    - to 25 pF

  • Cathode Capacitance to All

    - to 25 pF