Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

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

RK813

Large Raytheon beam transmitting tetrode for RF oscillator and power-amplifier service, with approximately 125 W plate dissipation and several hundred watts of RF output capability.

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

Description

RK813 is a Raytheon beam tetrode intended for r-f oscillator-amp., with published transmitting-service maximum ratings and capacitances.

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
10 V
Nominal heater current
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

Beam Power

X-ray radiationInterelectrode capacitances
Max plate voltage
2250 V
Max screen voltage
400 V
Max plate dissipation
125 W

Published transmitting-tube maximum voltages/currents, power ratings and capacitances; R-F Oscillator-Amp..

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

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Filament/heater voltage

    10 V

    Thoriated

  • Filament/heater current

    5 A

    Thoriated

Other

  • Maximum plate voltage

    2250 V

    R-F Oscillator-Amp.

  • Maximum grid-1 voltage

    -300 V

    R-F Oscillator-Amp.

  • Maximum grid-2 voltage

    400 V

    R-F Oscillator-Amp.

  • Maximum plate current

    225 mA

    R-F Oscillator-Amp.

  • Maximum grid-1 current

    30 mA

    R-F Oscillator-Amp.

  • Maximum grid-2 current

    55 mA

    R-F Oscillator-Amp.

  • Maximum plate dissipation

    125 W

    R-F Oscillator-Amp.

  • Maximum drive power

    4 W

    R-F Oscillator-Amp.

  • Maximum output power

    375 W

    R-F Oscillator-Amp.

Capacitance

  • Grid-to-plate capacitance

    0.25 pF

    Published transmitting-tube table

  • Input capacitance

    16.3 pF

    Published transmitting-tube table

  • Output capacitance

    14 pF

    Published transmitting-tube table