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Power - Beam (NOT sweep) (over 1000V 100W) ·BeamPower

4651

Beam-power transmitting tube documented with condition-specific RF power, operating, cooling, and output ratings for professional transmitter service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
5.5 V / 17.3 A

Description

The 4651 is a beam-power transmitting tube. The supplied datasheet was processed for heater or filament data, maximum ratings, operating characteristics, capacitances, cooling/service conditions, and power-output data. Condition-specific transmitting ratings are retained in the section-parameter table.

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
5.5 V
Nominal heater current
17.3 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
Max plate voltage
3500 V
Max screen voltage
1000 V
Max plate dissipation
1500 W
Max screen dissipation
50 W
Max cathode current
1.25 A

ruggedized Cermolox beam-power tube

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

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Maximum DC Plate Voltage

    3500 V

    CCS; transmitting service

  • Maximum DC Screen Voltage

    1000 V

    CCS; transmitting service

  • Maximum DC Plate Current

    1.25 A

    CCS; transmitting service

  • Plate Dissipation

    1500 W

    CCS; transmitting service

  • Screen Input

    50 W

    CCS; transmitting service

  • Typical DC Plate Voltage

    2600 V

    CCS; transmitting service

  • Typical DC Screen Voltage

    550 V

    CCS; transmitting service

  • Typical DC Plate Current

    900 mA

    CCS; transmitting service

  • Useful Power Output

    1160 W

    CCS; transmitting service

Characteristics

  • Mu Factor, Grid No.1 to Grid No.2

    7

    CCS; transmitting service