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Power - Triode ·Triode

809

Transmitting power triode intended for RF amplifier and oscillator service, with manufacturer ratings emphasizing radio-frequency output, substantial plate loading, and professional transmitter operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
UX4
Base pins
4
Nominal heater
6.3 V / 2.5 A

Description

Thoriated-tungsten RF power triode for amplifier and oscillator service, with full-input operation to 60 MHz.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UX4
Base pins
4
Nominal heater voltage
6.3 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

Triode

X-ray radiationInterelectrode capacitances
Amplification factor
50
Max plate voltage
750 V
Max plate dissipation
25 W
Max cathode current
100 mA

Published ratings and characteristics from source sheet.

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

Triode

Other

  • as 60 megacycles. The maximum plate dissipation is

    27 W

    as 60 megacycles. The maximum plate dissipation is 27 watts for class C telegraph

  • D-C Plate Voltage

    750 V

    D-C Plate Voltage ..... 750 max. Volts

  • D-C Plate Voltage.. 500

    750 V

    D-C Plate Voltage.. 500 750 Volts

  • Zero-Sig. D-C Plate Current- 40

    35 mA

    Zero-Sig. D-C Plate Current- 40 35 Milliamperes

  • Max.-Sig. Driving Power (Approx.)--- 2.4

    2.4 W

    Max.-Sig. Driving Power (Approx.)--- 2.4 2.4 Watts

  • Max.-Sig. Power Output (Approx.) - 60

    100 W

    Max.-Sig. Power Output (Approx.) - 60 100 Watts

  • D-C Plate Voltage

    750 V

    D-C Plate Voltage .... 750 max. Volts

  • Plate Dissipation

    25 W

    Plate Dissipation .. 25 max. Watts

  • Peak R-F Grid Voltage ...... 35

    40 V

    Peak R-F Grid Voltage ...... 35 40 Volts

  • D-C Plate Current.-....... 50

    50 mA

    D-C Plate Current.-....... 50 50 Milliamperes

  • D-C Grid Current (Approx.) - 6

    5 mA

    D-C Grid Current (Approx.) - 6 5 Milliamperes

  • Power Output (Approx.) -- 7.5

    12.5 W

    Power Output (Approx.) -- 7.5 12.5 Watts

  • D-C Plate Voltage

    600 V

    D-C Plate Voltage . 600 max. Volts

  • D-C Grid Voltage

    -200 V

    D-C Grid Voltage ... -200 max. Volts

  • D-C Plate Current

    83 mA

    D-C Plate Current. 83 max. Milliamperes

  • D-C Grid Current

    35 mA

    D-C Grid Current . 35 max. Milliamperes

  • Plate Dissipation

    17.5 W

    Plate Dissipation .. 17.5 max. Watts

  • D-C Plate Voltage ... . 500

    600 V

    D-C Plate Voltage ... . 500 600 Volts

  • D-C Grid Voltage .. . -160

    -160 V

    D-C Grid Voltage .. . -160 -160 Volts

  • D-C Grid Current (Approx.) . . 32

    32 mA

    D-C Grid Current (Approx.) . . 32 32 Milliamperes

  • Grid Resistor ... . 5000

    5000 Ω

    Grid Resistor ... . 5000 5000 Ohms

  • Driving Power (Approx.) . . 7.2

    7.2 W

    Driving Power (Approx.) . . 7.2 7.2 Watts

  • Power Output (Approx.) . .. 30

    38 W

    Power Output (Approx.) . .. 30 38 Watts

  • D-C Plate Voltage

    750 V

    D-C Plate Voltage . 750 max. Volts

  • D-C Grid Voltage

    -200 V

    D-C Grid Voltage. -200 max. Volts

  • D-C Plate Current

    100 mA

    D-C Plate Current. . 100 max. Milliamperes

  • D-C Grid Current

    35 mA

    D-C Grid Current . 35 max. Milliamperes

  • Plate Input

    75 W

    Plate Input ... 75 max. Watts

  • Plate Dissipation

    25 W

    Plate Dissipation .. ...... 25 max. Watts

  • D-C Plate Voltage.-.. 500

    750 V

    D-C Plate Voltage.-.. 500 750 Volts

  • D-C Grid Voltage ... -50

    -60 V

    D-C Grid Voltage ... -50 -60 Volts

  • Peak R-F Grid Voltage .. . 135

    140 V

    Peak R-F Grid Voltage .. . 135 140 Volts

  • D-C Plate Current...... 100

    100 mA

    D-C Plate Current...... 100 100 Milliamperes

  • D-C Grid Current (Approx.) . . 20

    20 mA

    D-C Grid Current (Approx.) . . 20 20 Milliamperes

  • each stated value of grid voltage should be decreased by

    4.5 V

    each stated value of grid voltage should be decreased by 4.5 volts and the circuit returns made to the

  • For high-frequency operation above

    60 MHz

    For high-frequency operation above 60 megacycles, see page 144.

Data set 02

1950 General Electric Transmitting Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    2.5 A

Other

  • FrequencyForMaximumRatings

    60 MHz

Data set 03

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Amplification Factor

    50

Other

  • Maximum Plate Voltage

    1000 V

  • Maximum Plate Dissipation

    30 W

  • Maximum Cathode Current

    100 mA

  • Full-Input Operating Frequency Maximum

    60 MHz

  • Power Output

    75 W

    ClassC,RF

  • Typical Plate Voltage

    1000 V

    Representative published point

  • Typical Plate Current

    100 mA

    Representative published point