Specialized - Cathode Ray ·CathodeRay
Rectangular Philips radar and oscilloscope CRT with a blue trace followed by green afterglow and long persistence. Its electrostatic display system operates to approximately 6 kV for radar or persistent waveform presentation.
The Philips DP1622 is a rectangular radar/oscilloscope crt with blue with green afterglow, long 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
blue with green afterglow, long 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.
Heater voltage
6.3 V
Published heater rating
Heater current
300 mA
Published heater rating
Deflection
Double electrostatic
OscilloscopeCRT
Series-chain switch-on heater-voltage limit
9.5 V
SeriesHeater