Specialized - Cathode Ray ·CathodeRay
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 DG1622.
The Philips DG1622 is a rectangular radar/oscilloscope crt with green, medium persistence.
Duodecal 12-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Electrostatic focusing/deflection CRT section; electrical/screen/deflection data retained in parameter rows.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater Voltage
6.3 V
Heater Current
300 mA
Phosphor Variant
green, medium persistence text
Screen fluorescence and persistence
Screen Shape
Rectangular text
Radar or oscilloscope service
Data set 02
Published operating points and test conditions from this source.
Main accelerating voltage
1800 V
Maximum post-acceleration voltage
6000 V
Maximum focusing-grid voltage
1100 V
Maximum main accelerating voltage
2500 V
Maximum cathode current
300 uA
Maximum heater-cathode voltage
150 V
Grid capacitance
10 pF
Deflection-plate capacitance D1
16 pF
Maximum
Deflection-plate capacitance D2
20 pF
Maximum