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Power - Tetrode (NOT beam) ·Tetrode

844

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
MEDIUM5
Base pins
5
Nominal heater
2.5 V / 2.5 A

Description

Screen-grid transmitting tetrode for RF power amplification and frequency-multiplier service.

Socket description

Medium 5-contact transmitting-tube base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
MEDIUM5
Base pins
5
Nominal heater voltage
2.5 V
Nominal heater current
2.5 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
0.0006 S
Amplification factor
75
Max plate voltage
500 V
Max screen voltage
175 V
Max plate dissipation
15 W

Published maximum ratings and characteristic values promoted from the approved source.

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

1938 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • HeaterVoltageNominal

    2.5 V

    Nominal

  • HeaterCurrentNominal

    2.5 A

    Nominal

  • Maximum Plate Voltage

    500 V

  • Maximum Screen Voltage

    175 V

  • Maximum Plate Dissipation

    15 W

  • Maximum Frequency

    8 MHz

    Published full-rating frequency guidance

Characteristic

  • Transconductance

    600 µS

    Typical

  • Amplification Factor

    75

    Typical