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CL44

Neon-filled end-viewing linear light source whose output follows anode current and can be electrically modulated.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: InternationalOctal
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 1.5 A

Description

Neon-filled end-viewing linear light source whose light output is proportional to anode current and can be electrically modulated.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: InternationalOctal
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 1.5 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

InternationalOctal - 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

LightSource

X-ray radiationInterelectrode capacitances

Max cathode current: 40 mA
Rectifier warm-up time: 60 s

Promoted fields were populated only where the Ferranti sheet maps cleanly to the locked schema; additional ratings and operating values are retained in TUBE_SECTION_PARAMETER.

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

1963 Ferranti

Published operating points and test conditions from this source.

SECTION 1

LightSource

Other

Supply voltage minimum
400 V
DC
Mean anode current maximum
40 mA
Peak anode current maximum
90 mA
Trigger voltage maximum
400 V
DC
Modulation frequency maximum
15 kHz
Trigger resistor minimum
20000 Ohm

Characteristics

Cathode current minimum
10 mA
MaintainDischarge
Anode-to-cathode voltage drop maximum
55 V