CK5750

Reliable miniature heptode for radio frequency-converter service. High plate resistance and conventional mixer operating conditions make it a dedicated receiving frequency-changing valve.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 8Z
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

CK5750 is a Heptode tube listed by Raytheon for converter service. Reliable miniature heptode converter.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8Z
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8Z - 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

Heptode

X-ray radiationInterelectrode capacitances

Plate resistance: 1000000 Ω
Transconductance: 0.000475 S

Reliable miniature heptode converter.

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

Heptode

Other

Plate voltage
250 V
Converter
Oscillator-grid resistance
20000 ohm
Converter
Screen voltage
100 V
Converter
Grid 3 voltage
-1.5 V
Converter
Plate current
2.6 mA
Converter
Screen current
7.5 mA
Converter