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Tube Tinker — Electron Tube Database
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Power - Beam (NOT sweep) ·BeamPower

828

Radiation-cooled beam-power transmitting tube for RF power-amplifier service, also documented for Class-AB1 audio-frequency operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
UX4
Base pins
4
Nominal heater
10 V / 3.25 A

Description

Radiation-cooled beam-power transmitting tube for RF power-amplifier service.

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
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

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.0045 S
Max plate voltage
2000 V
Max screen voltage
400 V
Max plate dissipation
100 W
Max cathode current
180 mA

Published ratings and characteristics promoted from the supplied General Electric 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

1950 General Electric Transmitting Types

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • HeaterOrFilamentVoltage

    10 V

  • HeaterOrFilamentCurrent

    3.25 A

Other

  • FrequencyForMaximumRatings

    30 MHz

Data set 02

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Transconductance

    2700 µS

Other

  • Maximum Plate Voltage

    2000 V

  • Maximum Screen Voltage

    750 V

  • Maximum Plate Dissipation

    80 W

  • Maximum Cathode Current

    180 mA

  • Full-Input Operating Frequency Maximum

    30 MHz

  • Power Output

    385 W

    ClassAB1,AF,TwoTubes

  • Typical Plate Voltage

    2000 V

    Representative published point

  • Typical Plate Current

    270 mA

    Representative published point

Data set 03

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate voltage

    1500 V

    RFPowerAmplifier;ClassC

  • Plate current

    180 mA

    RFPowerAmplifier;ClassC

  • Power output

    200 W

    RFPowerAmplifier;ClassC

  • Control-grid voltage

    -100 V

    RFPowerAmplifier;ClassC

  • Screen voltage

    400 V

    RFPowerAmplifier;ClassC

  • Maximum frequency at full input

    30 MHz

    RFPowerAmplifier

Capacitance

  • Grid-to-plate capacitance

    0.07 pF

    Section1

  • Input capacitance

    12 pF

    Section1

  • Output capacitance

    14 pF

    Section1

Data set 04

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate voltage

    1250 V

    RFPowerAmplifier

  • Plate current

    160 mA

    RFPowerAmplifier

  • Power output

    150 W

    RFPowerAmplifier

  • Control-grid voltage

    -95 V

    RFPowerAmplifier

  • Grid current

    15 mA

    RFPowerAmplifier

  • Screen voltage

    400 V

    RFPowerAmplifier