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DG105

Philips/Mullard DG-series cathode-ray instrument tube intended for oscillographic and measurement display, with manufacturer-defined electrostatic focusing, deflection, screen, and accelerating characteristics for type DG105.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 4 V / 560 mA

Description

DG105 is a Philips cathode-ray tube for oscillography. Post-accelerated CRT for oscillography. This designation uses the green, medium persistence screen variant.

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: 4 V
Nominal heater current: 560 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: 3000 V

Post-accelerated CRT for oscillography. Screen variant: green, medium persistence.

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

Other

Main accelerating voltage
1000 V
Post-acceleration voltage
2500 V
Focusing-grid voltage
200 to 340 V
Maximum post-acceleration voltage
3000 V
Maximum main accelerating voltage
1200 V

Characteristic

Deflection sensitivity N2 without post-acceleration
0.55 mm/V
Deflection sensitivity N2 with post-acceleration
0.32 mm/V