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RK837

Raytheon RF pentode designed for oscillator-amplifier transmitting service. Published maximum ratings and capacitances establish its role as a radio-frequency power and generation tube.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: MEDIUM7
Base pins: 7
Nominal heater: 12.6 V / 700 mA

Description

RK837 is a Raytheon r-f pentode intended for r-f oscillator-amp., with published transmitting-service maximum ratings and capacitances.

Socket description

Medium 7-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: MEDIUM7
Base pins: 7
Nominal heater voltage: 12.6 V
Nominal heater current: 700 mA
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: 500 V
Max screen voltage: 200 V
Max plate dissipation: 12 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

Pentode

Characteristic

Filament/heater voltage
12.6 V
Heater
Filament/heater current
700 mA
Heater

Other

Maximum plate voltage
500 V
R-F Oscillator-Amp.
Maximum grid-1 voltage
-200 V
R-F Oscillator-Amp.
Maximum grid-2 voltage
200 V
R-F Oscillator-Amp.
Maximum grid-3 voltage
40 V
R-F Oscillator-Amp.
Maximum plate current
80 mA
R-F Oscillator-Amp.
Maximum grid-1 current
8 mA
R-F Oscillator-Amp.
Maximum grid-2 current
40 mA
R-F Oscillator-Amp.
Maximum plate dissipation
12 W
R-F Oscillator-Amp.
Maximum drive power
0.4 W
R-F Oscillator-Amp.
Maximum output power
22 W
R-F Oscillator-Amp.

Capacitance

Grid-to-plate capacitance
0.2 pF
Published transmitting-tube table
Input capacitance
16 pF
Published transmitting-tube table
Output capacitance
10 pF
Published transmitting-tube table