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251QQ52

Measurement cathode-ray tube with electromagnetic beam deflection and electrostatic focusing for laboratory and industrial display instruments. Tesla documentation gives high-voltage anode capability to approximately 12 kV.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 600 mA

Description

Measurement cathode-ray tube with electromagnetic beam deflection and electrostatic focusing for laboratory and industrial display equipment.

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: 12000 V

Published ratings and characteristics promoted from the source where directly stated.

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 Tesla

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

Heater or filament voltage
6.3 V
Published nominal value
Heater or filament current
600 mA
Published nominal value
Useful screen diameter
240 mm
Published screen size