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RK4D22

Raytheon transmitting tube designed for RF oscillator and amplifier service, with dual heater or filament operating ratings.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: Spec. 7-Pin
Socket code: -
Base pins: 7
Nominal heater: 25.2 V / 800 mA

Description

Raytheon transmitting tube rated for r-f oscillator-amplifier; dual heater/filament ratings shown. Published table values include electrode voltages/currents, dissipation, power, and capacitances where shown.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: Spec. 7-Pin
Socket code: -
Base pins: 7
Nominal heater voltage: 25.2 V
Nominal heater current: 800 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Spec. 7-Pin - 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: 750 V
Max screen voltage: 350 V
Max plate dissipation: 50 W

Maximum/rated transmitting-tube table values.

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

Other

Grid 1 voltage
-200 V
Maximum plate current
300 mA
Maximum grid 1 current
15 mA
Maximum grid 2 current
35 mA
Drive power
1.5 W
Output power
135 W

Capacitance

Grid-to-plate capacitance
0.27 pF
Input capacitance
28 pF
Output capacitance
13 pF