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Specialized - Cathode Ray ·CathodeRay

C127S

Mazda cathode-ray tube documented for television or oscillographic display service. The source supports a general display classification but does not justify choosing exclusively between television and instrumentation use.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 600 mA

Description

C127S cathode-ray tube for television or oscillographic display service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

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

Cathode Ray

X-ray radiationInterelectrode capacitances
Max plate voltage
2200 V

CRT electrical section; anode-2/accelerating voltage promoted where clearly 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

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

  • Maximum first-anode voltage

    1100 V

  • Maximum Wehnelt negative voltage

    -125 V

  • Maximum heater-cathode voltage

    100 V

  • Grid capacitance

    8 pF