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Power - Pentode (NOT beam) ·Pentode

RK46

Directly heated pentode power amplifier designed for RF amplification, oscillator, frequency-multiplier, and modulation service. A versatile transmitting tube for multiple radio-frequency functions.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
MEDIUM5
Base pins
5
Nominal heater
12.6 V / 2.5 A

Description

Directly heated pentode power amplifier for R-F amplification, oscillator, frequency-multiplier and modulation 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
12.6 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

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
1500 V
Max screen voltage
300 V
Max plate dissipation
40 W

Published ratings/characteristics promoted where directly applicable; identical twin sections are compressed to one section row.

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 Raytheon Amateur

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater or filament voltage

    12.6 V

    Published nominal value

  • Heater or filament current

    2.5 A

    Published nominal value

Other

  • Maximum plate dissipation

    40 W

    Published maximum or highest stated rating

  • RF power output

    84 W

    ClassC

Capacitance

  • Grid-to-plate capacitance

    0.1 pF

    Published direct interelectrode capacitance