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Voltage Pentode - Sharp Cutoff (single) ·Pentode

CK574AX

Pentode designed for radio-frequency or wide-band amplifier service in receiving or electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5E
Socket code
-
Base pins
5
Nominal heater
0.625 V / 20 mA

Description

CK574AX is a Pentode tube listed by Raytheon for RF amplifier service. Subminiature directly heated RF-amplifier pentode.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5E
Socket code
-
Base pins
5
Nominal heater voltage
0.625 V
Nominal heater current
20 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

5E - 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
Plate resistance
1250000 Ω
Transconductance
0.00016 S

Subminiature directly heated RF-amplifier pentode.

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

Other

  • Plate voltage

    22.5 V

    RF amplifier

  • Control-grid voltage

    -0.625 V

    RF amplifier

  • Screen voltage

    22.5 V

    RF amplifier

  • Plate current

    0.125 mA

    RF amplifier

  • Screen current

    0.04 mA

    RF amplifier