Specialized - Photo Tube ·CameraPickup
LI4521
Russian vidicon camera pickup tube for special television.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- -
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
- -
- Nominal heater current
- -
- 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
CameraPickup
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
2026 Russian Photo Tube datasheet. Vidicon; electrostatic focus, electromagnetic deflection; peak 5500 Å (4800–6200); area 11.3 × 11.3 mm; 600 lines.
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.