Data set 01
1971 English Electric Valve
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Typical Anode Voltage
50 kV
Peak Anode Current
4.5 mA
Specialized - Cathode Ray ·CathodeRay
T940B
English Electric very-high-voltage cathode-ray display tube typically operated around 50 kV, with a published peak anode current of 4.5 mA for specialized bright-screen service.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- 12
- Nominal heater
- 6.3 V / 660 mA
Description
Five-inch projection cathode-ray tube with magnetic focusing and magnetic deflection for high-brightness projection applications.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- 12
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 660 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
- 55000 V
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.