Data set 01
1964 RMA EIA
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Typical anode voltage
16000 V
Specialized - Cathode Ray ·CathodeRay
11EP4
Eleven-inch P4 cathode-ray picture tube intended for direct-view display service. The RMA/EIA data specify typical anode operation near 16 kV, placing it among high-voltage television-style CRTs rather than low-voltage instrument tubes.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B8H
- Base pins
- -
- Nominal heater
- 6.3 V / 450 mA
Description
The 11EP4 is a direct-view cathode-ray television picture tube. The supplied sheet specifies its focus/deflection system, high-voltage anode operation, heater requirements, electrode ratings, and picture-tube mechanical/optical characteristics.
Socket description
Neoeightar 8-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B8H
- Base pins
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 450 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
No fixed ratings are recorded for this section.
CRT anode/ultor voltage is represented in MaxPlateVoltage; additional electrode, drive, optical, and capacitance data 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.