Specialized - Cathode Ray ·CathodeRay
Mullard oscillographic cathode-ray tube with green non-persistent screen, intended for rapidly changing waveform display without significant afterglow.
The Mullard ECR30 is an oscillographic cathode-ray tube with green non-persistent screen.
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
Published source values promoted where applicable; additional published values retained as parameters.
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.
Deflection method
Electrostatic
Screen color
Green, medium persistence
Application
Oscilloscope display
Data set 02
Published operating points and test conditions from this source.
Heater Voltage
4 V
Heater Current
1 A
Fluorescence
Green text
Persistence
Non-persistent text
Deflection Method
Electrostatic text
Grid Voltage Minimum
-18 V
Grid Voltage Maximum
-1 V
Deflection Sensitivity
170/Va3 mm/V
XandYPlates
Grid Capacitance Maximum
20 pF
Deflection Plate Capacitance Maximum
15 pF
EachPlate
Cross-Plate Capacitance Maximum
3 pF
OneXtoOneY
Anode Voltage
800 V
Focus Voltage Minimum
100 V
Focus Voltage Maximum
170 V
Maximum Anode Voltage
1000 V