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Specialized - Traveling Wave ·TravelingWave

8379

Low-noise helix traveling-wave amplifier for 2.32–2.68 GHz radar and microwave receivers, offering about 31 dB gain and 4.5 dB noise figure.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B9A
Base pins
8
Nominal heater
5 V / 650 mA

Description

Low-noise helix traveling-wave amplifier for 2320-2680 MHz radar and microwave receivers, providing about 31 dB gain and 4.5 dB noise figure.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
8
Nominal heater voltage
5 V
Nominal heater current
650 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
Max plate voltage
800 V

Electrical section extracted from supplied RCA data sheet.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Other

  • Frequency minimum

    2320 MHz

  • Frequency maximum

    2680 MHz

  • Collector voltage maximum

    800 V

  • Helix voltage maximum

    500 V

  • Grid No.4 voltage maximum

    500 V

  • Grid No.3 voltage maximum

    300 V

  • Grid No.2 voltage maximum

    75 V

  • Grid No.1 voltage maximum

    20 V

  • Collector current maximum

    500 uA

  • Cathode current maximum

    500 uA

  • RF peak input maximum

    300 W

  • RF average input maximum

    1 W

  • Collector voltage

    600 V

    f=2500MHz

  • Helix voltage

    375 V

    f=2500MHz

  • Gain

    31 dB

    f=2500MHz

  • Saturated output power

    1 mW

    f=2500MHz

  • Noise figure

    4.5 dB

    f=2500MHz

Characteristics

  • Cold insertion loss minimum

    60 dB

Data set 02

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

  • Heater/filament voltage nominal

    5 V

    WholeTube

  • Heater/filament current nominal

    650 mA

    WholeTube

  • Heater Current

    1 A

    Published source row

  • Heater Current (value 2)

    450 mA

    Published source row

  • Heater Current (value 3)

    850 mA

    Published source row

  • DC Hel ix Voltage

    1 V

    Published source row

  • DC Hel ix Voltage (value 2)

    4 V

    Published source row

  • DC Hel ix Voltage (value 3)

    335 V

    Published source row

  • DC Hel ix Voltage (value 4)

    405 V

    Published source row

  • DC Grid-No

    4 V

    Published source row

  • DC Grid-No (value 2)

    1 V

    Published source row

  • DC Grid-No (value 3)

    4 V

    Published source row

  • DC Grid-No (value 4)

    150 V

    Published source row

  • DC Grid-No (value 5)

    400 V

    Published source row

  • DC Grid-No

    3 V

    Published source row

  • DC Grid-No (value 2)

    1 V

    Published source row

  • DC Grid-No (value 3)

    4 V

    Published source row

  • DC Grid-No (value 4)

    25 V

    Published source row

  • DC Grid-No (value 5)

    100 V

    Published source row

  • Saturated Power Output

    1

    Published source row

  • Saturated Power Output (value 2)

    4

    Published source row

  • Saturated Power Output (value 3)

    1

    Published source row

  • Small -Signal Gain

    1 dB

    Published source row

  • Small -Signal Gain (value 2)

    4 dB

    Published source row

  • Small -Signal Gain (value 3)

    28 dB

    Published source row

  • Small -Signal Gain (value 4)

    34 dB

    Published source row

  • Noise Figure

    1 dB

    Published source row

  • Noise Figure (value 2)

    4 dB

    Published source row

  • Noise Figure (value 3)

    5 dB

    Published source row

  • Note is Witn neater voltage of

    5 V

    Published source row

  • Note

    2

    Published source row

  • The rated heater voltage of

    5 V

    Published source row

  • Apply rated heater voltage to the

    8379 min

    Published source row

  • to al l other tube electrodes except grid No

    2

    Published source row

Other

  • ,-. HELIX-TRANSMISSION-LINE TYPE NF =

    4.5 dB

    Published source row

  • FREQUENCY RANGE,

    2320 MHz

    Published source row

  • FREQUENCY RANGE, (value 2)

    -2680 MHz

    Published source row

  • FREQUENCY RANGE, (value 3)

    31 MHz

    Published source row

  • Voltage (AC or DC)

    5 V

    Published source row

  • Voltage (AC or DC) (value 2)

    5 V

    Published source row

  • Current at heater volts =

    5 V

    Published source row

  • Current at heater volts = (value 2)

    0.65 V

    Published source row

  • Starting current Must never exceed

    4

    Published source row

  • Minimum cathode heating time

    1 min

    Published source row

  • Frequency range

    2320 MHz

    Published source row

  • Frequency range (value 2)

    2680 MHz

    Published source row

  • Minimum cold insertion loss

    60 dB

    Published source row

  • DC Col lector Voltage

    800 V

    Published source row

  • DC Hel ix Voltage

    500 V

    Published source row

  • DC Grid-No

    4 V

    Published source row

  • DC Grid-No (value 2)

    500 V

    Published source row

  • DC Grid-No

    3 V

    Published source row

  • DC Grid-No (value 2)

    300 V

    Published source row

  • DC Grid-No

    2 V

    Published source row

  • DC Grid-No (value 2)

    75 V

    Published source row

  • DC Grid-No

    1 V

    Published source row

  • DC Grid-No (value 2)

    20 V

    Published source row

  • DC Collector Current

    500

    Published source row

  • DC Helix Current

    5

    Published source row

  • DC Cathode Current

    500

    Published source row

  • DC Collector Voltage

    600 V

    Published source row

  • DC Hel ix Voltage

    375 V

    Published source row

  • DC Grid-No

    4 V

    Published source row

  • DC Grid-No (value 2)

    325 V

    Published source row

  • DC Grid-No

    3 V

    Published source row

  • DC Grid-No (value 2)

    70 V

    Published source row

  • DC Grid-No

    2 V

    Published source row

  • DC Grid-No (value 2)

    10 V

    Published source row

  • DC Grid-No.l Voltage

    10 V

    Published source row

  • DC Collector Current

    150

    Published source row

  • DC Hel ix Current

    0

    Published source row

  • DC Hel ix Current (value 2)

    5

    Published source row

  • DC Grid-No

    4

    Published source row

  • DC Grid-No

    3

    Published source row

  • DC Grid-No (value 2)

    1

    Published source row

  • DC Grid-No

    2

    Published source row

  • DC Grid-No

    1

    Published source row

  • Gain (Low level )

    31 dB

    Published source row

  • Power Output (Saturated)

    1

    Published source row

  • Power Output (Saturated) (value 2)

    0

    Published source row

  • Noise Figure

    4 dB

    Published source row

  • Noise Figure (value 2)

    5 dB

    Published source row