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Power - Tetrode (NOT beam) (over 1000V 100W) ·Tetrode

8177

High-power transmitting tetrode designed for RF power amplification, linear amplification, oscillation, modulation, or frequency multiplication.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
4 V / 80 A

Description

Ceramic coaxial power tetrode for UHF amplifier and oscillator service.

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
4 V
Nominal heater current
80 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
0.02 S
Amplification factor
9
Max plate voltage
3500 V
Max screen voltage
700 V
Max plate dissipation
1200 W
Max screen dissipation
50 W
Max cathode current
950 mA

Published ratings/characteristics promoted from the source; representative section used for repeated identical systems where applicable.

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

1953 Amperex

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Transconductance

    20000 µS

Other

  • Maximum Plate Voltage

    3500 V

  • Maximum Screen Voltage

    700 V

  • Maximum Plate Dissipation

    1200 W

  • Maximum Screen Dissipation

    50 W

  • Maximum Cathode Current

    950 mA

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Plate voltage

    3110 V

    RFPower

  • Plate current

    800 mA

    RFPower

  • Power output

    1280 W

    RFPower

  • Grid voltage

    -300 V

    RFPower

  • Grid current

    10 mA

    RFPower

  • Screen voltage

    610 V

    RFPower

  • Maximum frequency

    900 MHz

    RFPower

Capacitance

  • Grid-to-plate capacitance

    0.15 pF

  • Input capacitance

    46 pF

  • Output capacitance

    6 pF