Data set 01
1951 Mullard Valve and Service Manual
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Deflection method
Electrostatic
Application
Application
Oscilloscope display
Specialized - Cathode Ray ·CathodeRay
ECR35P
Mullard oscillographic CRT using blue fluorescence with yellow-green afterglow, providing a retained trace compared with the non-persistent ECR35 screen.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 4 V / 1 A
Description
The Mullard ECR35P is the blue-fluorescence, yellow-green-afterglow variant of the ECR35 oscillographic cathode-ray tube.
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
- 1 A
- 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
- 2500 V
Published source values promoted where applicable; additional published values retained as parameters.
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 02
1963 Mullard
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Heater Voltage
4 V
Heater Current
1 A
Fluorescence
Blue text
Persistence
Yellow-green afterglow text
Deflection Method
Electrostatic text
Grid Voltage Minimum
-50 V
Grid Voltage Maximum
-1 V
X Deflection Sensitivity
360/Va3 mm/V
Grid Capacitance Maximum
25 pF
Deflection Plate Capacitance Maximum
25 pF
EachPlate
Cross-Plate Capacitance Maximum
5 pF
OneXtoOneY
Other
Anode Voltage
1200 V
Focus Voltage Minimum
150 V
Focus Voltage Maximum
250 V
Maximum Anode Voltage
2500 V