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Power - Tetrode (NOT beam) ·Tetrode

Z5267

Planar power tetrode for grounded-grid RF amplification and oscillator service at microwave frequencies. Very high transconductance, low-feedback geometry, and roughly 140 W plate dissipation permit high-gain power operation around 3 GHz and beyond.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 1.9 A

Description

Planar tetrode for grounded-grid RF power-amplifier or oscillator service to 3000 MHz and beyond.

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
1.9 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

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.06 S
Amplification factor
60
Max plate voltage
1000 V
Max screen voltage
300 V
Max plate dissipation
140 W
Max screen dissipation
3 W
Max cathode current
200 mA

Promoted fields mapped semantically from printed ratings/characteristics headings; pulsed and microwave-specific limits remain in parameter rows when fixed-field semantics are ambiguous.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Heater Voltage, AC or DC+ 6.3+

    0.3 V

    Heater Voltage, AC or DC+ 6.3+0.3 Volts

  • Heater Currentz

    1.9 A

    Heater Currentz 1.9 Amperes

  • Plate Voltage

    1000 V

    Plate Voltage 1000 Volts

  • Screen Voltage

    300 V

    Screen Voltage 300 Volts

  • Grid-Number 1 Voltage

    -1.2 V

    Grid-Number 1 Voltage -1.2 Volts

  • Transconductance

    60000 uS

    Transconductance 60000 Micromhos

  • Plate Current

    160 mA

    Plate Current 160 Milliamperes

  • Radio-Frequency Power Amplifier

    3000 MHz

    Radio-Frequency Power Amplifier - 3000 Megacycles

  • DC Plate Voltage 1000 800

    800 V

    DC Plate Voltage 1000 800 800 Volts

  • DC Screen Voltage 300 250

    250 V

    DC Screen Voltage 300 250 250 Volts

  • DC Grid-Number 1 Voltage -6.0 -3.0

    -2 V

    DC Grid-Number 1 Voltage -6.0 -3.0 -2.0 Volts

  • DC Plate Current 160 160

    160 mA

    DC Plate Current 160 160 160 Milliamperes

  • DC Screen Current 8.0 6.0

    7 mA

    DC Screen Current 8.0 6.0 7.0 Milliamperes

  • DC Grid-Number 1 Current, approximate 25 10

    8 mA

    DC Grid-Number 1 Current, approximate 25 10 8 Milliamperes

  • Driving Power, approximate 7 2.3

    0.8 W

    Driving Power, approximate 7 2.3 0.8 Watts

  • Useful Power Qutput, approximate 40 20

    10 W

    Useful Power Qutput, approximate 40 20 10 Watts

  • Heater current of a bogey tube at Ef =

    6.3 V

    Heater current of a bogey tube at Ef = 6.3 volts.

Capacitance

  • Grid-Number 2 to Plate

    4 pf

    Grid-Number 2 to Plate 4 pf

  • Grid-Number 1 to Cathode

    18 pf

    Grid-Number 1 to Cathode 18 pf

  • Grid-Number 1 to Grid-Number 2

    30 pf

    Grid-Number 1 to Grid-Number 2 30 pf

  • Envelope Temperature, maximum

    300 C

    Envelope Temperature, maximum 300 C

  • DC Plate Voltage

    1000 V

    DC Plate Voltage 1000 Volts

  • DC Screen Voltage

    325 V

    DC Screen Voltage 325 Volts

  • DC Grid-Number 1 Voltage

    -20 V

    DC Grid-Number 1 Voltage -20 Volts

  • DC Plate Current

    175 mA

    DC Plate Current 175 Milliamperes

  • DC Grid-Number 1 Current

    35 mA

    DC Grid-Number 1 Current 35 Milliamperes

  • DC Cathode Current

    200 mA

    DC Cathode Current 200 Milliamperes

  • Plate Input

    175 W

    Plate Input 175 Watts

  • Plate Dissipation

    140 W

    Plate Dissipation 140 Watts

  • Screen Dissipation

    3 W

    Screen Dissipation 3.0 Watts

  • kilovolts and peak cathode currents up to

    7.5 A

    kilovolts and peak cathode currents up to 7.5 amperes may be considered,

  • PublishedData

    800 V

    800 volts positive.