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Power - Triode ·Triode

5767

Planar microwave power triode designed as a continuous-wave oscillator into the gigahertz region. Published operation provides about 20 W at 1 GHz and remains usable to approximately 3.3 GHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
-
Nominal heater
6.3 V / 450 mA

Description

Planar ultra-high-frequency general-purpose triode designed as a continuous-wave oscillator to 3300 MHz.

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
-
Nominal heater voltage
6.3 V
Nominal heater current
450 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0045 S
Amplification factor
25
Max plate voltage
350 V
Max plate dissipation
50 W

Planar-electrode disc-seal triode for microwave CW oscillator service through 3.3 GHz.

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

1945 Litton Industries

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum Heater Voltage

    - to 7 V

    AC or DC

  • Maximum Heater Current

    - to 450 mA

  • Maximum Anode Voltage

    - to 350 V

  • Maximum Anode Dissipation

    - to 50 W

  • Maximum Operating Frequency

    - to 3.3 GHz

  • Oscillator Anode Voltage

    200 V

    1.0 GHz CW

  • Oscillator Anode Current

    35 mA

    1.0 GHz CW

  • Power Output

    20 W

    1.0 GHz CW

  • Power Output

    400 mW

    3.3 GHz CW

  • Tunable Frequency

    200 to 900 MHz

    CW tunable

Characteristic

  • Grid-Anode Capacitance

    1.45 pF

  • Grid-Cathode Capacitance

    1.3 pF

  • Anode-Cathode Capacitance

    0.015 pF

  • Transconductance

    4500 uS

    Typical

  • Amplification Factor

    25

    Typical

  • Grid Voltage at 10uA Anode Current

    -15 V

    Typical

Data set 02

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Transconductance

    4500 µS

  • Amplification Factor

    25

Other

  • Maximum Plate Voltage

    350 V

  • Maximum Plate Dissipation

    6 W

  • Plate Current

    12 mA

  • Operating Frequency Maximum

    3300 MHz

Capacitance

  • Grid-Plate Capacitance

    1.37 pF

  • Grid-Cathode Capacitance

    1.27 pF

  • Plate-Cathode Capacitance

    0.025 pF

    Maximum