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D1012GL

Flat-face oscilloscope CRT with yellowish-green screen, double electrostatic deflection, and post-deflection acceleration for bright retained instrument traces.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

Description

Flat-face post-deflection-accelerator oscilloscope CRT with yellowish green screen and double electrostatic deflection.

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: 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.

CRT-specific electrical, optical, deflection, focusing, capacitance, and mechanical data are retained in TUBE_SECTION_PARAMETER because the locked promoted fields primarily target conventional electrode sections.

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 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Cathode Ray

Construction

Screen color
Yellowish green
OscilloscopeCRT
Screen persistence
Medium short
OscilloscopeCRT
Focusing
Electrostatic
OscilloscopeCRT
Deflection
Double electrostatic
OscilloscopeCRT

Other

Useful screen diameter
90 mm
OscilloscopeCRT
Useful vertical scan
60 mm
OscilloscopeCRT
Post accelerator voltage
4000 V
OscilloscopeCRT
Isolation shield voltage
1000 V
OscilloscopeCRT
Second accelerator voltage
1000 V
OscilloscopeCRT
Focusing electrode voltage minimum
20 V
OscilloscopeCRT
Focusing electrode voltage maximum
200 V
OscilloscopeCRT
First accelerator voltage
1000 V
OscilloscopeCRT
Grid No.1 voltage minimum
-67 V
OscilloscopeCRT
Grid No.1 voltage maximum
-25 V
OscilloscopeCRT
Post accelerator voltage maximum
5000 V
OscilloscopeCRT
Grid No.1 negative voltage maximum
200 V
OscilloscopeCRT

Characteristic

Horizontal deflection factor maximum
31 V/cm
OscilloscopeCRT
Vertical deflection factor maximum
11.2 V/cm
OscilloscopeCRT
Line width
0.35 mm
BeamCurrent10uA
Deflection linearity deviation maximum
2 %
OscilloscopeCRT
Pattern distortion maximum
2 %
OscilloscopeCRT

Capacitance

Grid No.1 capacitance
4 pF
Section1
Cathode capacitance
3 pF
Section1
X plate capacitance
4 pF
Section1
Y plate capacitance
3 pF
Section1