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3LO1I

Three-inch Russian cathode-ray tube with electrostatic focusing and deflection and a green screen for visual indication. Its documentation supports general instrument-display service rather than television picture use.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: 0
Nominal heater: 6.3 V / 300 mA

Description

The 3LO1I is an electrostatically focused and deflected cathode-ray tube with a green screen for visual indication.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 0
Nominal heater voltage: 6.3 V
Nominal heater current: 300 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

No fixed ratings are recorded for this section.

REDO promoted fields populated from published specification/maximum-rating tables where applicable.

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 Russian

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Characteristics

First anode voltage
0 to 50 V
Published range
Second anode voltage
500 V
Published value
Grid cutoff voltage
-30 V
Published nominal
Brightness-modulation voltage
28 V
At 5 cd/m2 screen luminance
Screen diameter
33.5 mm
Maximum
CRT length
115 mm
Maximum
Minimum operating life
1500 h
Published value
Focused line width
0.4 mm
Maximum
Modulation voltage
35 V
Maximum