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Power - Tetrode (NOT beam) ·Tetrode

850

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
J4
Base pins
4
Nominal heater
10 V / 3.25 A

Description

Thoriated-tungsten transmitting power tetrode for RF amplifier and oscillator service.

Socket description

Jumbo 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
J4
Base pins
4
Nominal heater voltage
10 V
Nominal heater current
3.25 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
Amplification factor
550
Max plate voltage
1250 V
Max screen voltage
400 V
Max plate dissipation
100 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

    10 V

    Nominal

  • HeaterCurrentNominal

    3.25 A

    Nominal

  • Maximum Plate Voltage

    1250 V

  • Maximum Screen Voltage

    400 V

  • Maximum Plate Dissipation

    100 W

Characteristic

  • Amplification Factor

    550

    Typical

Data set 02

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • HeaterOrFilamentVoltage

    10 V

  • HeaterOrFilamentCurrent

    3.25 A

Other

  • MaximumOperatingFrequency

    15 MHz

    Reduced ratings may apply at upper frequencies