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CK5851

Directly heated subminiature beam pentode designed for RF power-amplifier service, with two published filament operating arrangements.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 8CA
Socket code: -
Base pins: 8
Nominal heater: 1.25 V / 110 mA

Description

CK5851 is a BeamPower tube listed by Raytheon for RF power amplifier service. Directly heated subminiature beam pentode for RF power-amplifier service; two filament operating arrangements are published.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8CA
Socket code: -
Base pins: 8
Nominal heater voltage: 1.25 V
Nominal heater current: 110 mA
Parallel heater voltage: 1.25 V
Parallel heater current: 110 mA
Series capable: Yes

8CA - 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

Transconductance: 0.0016 S

Directly heated subminiature beam pentode for RF power-amplifier service; two filament operating arrangements are published.

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

Plate voltage
125 V
RF power amplifier
Control-grid voltage
-7.5 V
RF power amplifier
Screen voltage
125 V
RF power amplifier
Plate current
5.5 mA
RF power amplifier
Screen current
0.9 mA
RF power amplifier