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Specialized - Cathode Ray ·CathodeRay

RK4MM1

German cathode-ray tube documented in a Wehrmacht-era technical source. Electrical ratings and operating characteristics are available, but the extracted evidence does not support a more specific functional assignment.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

RK4MM1: German cathode-ray tube with published electrical ratings and operating data. The German-language datasheet was translated and interpreted by technical meaning, with ratings and characteristics preserved.

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
-
Nominal heater current
-
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

No fixed ratings are recorded for this section.

Published ratings and characteristics promoted; additional useful values retained as parameters.

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

194X Wehrmacht Rohren

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Other

  • Anode voltage

    2000 V

Characteristics

  • Grid cutoff voltage

    -25 to -85 V

  • Deflection method

    Electromagnetic

  • Focusing method

    Electromagnetic