Specialized - Cathode Ray ·CathodeRay
13LM57D
Russian oscilloscope cathode-ray tube for visual display of electrical signals; magnetic deflection and combined focusing, blue screen. 6.3 V filament; 4 kV anode.
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 6.3 V / -
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
- 6.3 V
- 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 0
Cathode Ray
No fixed ratings are recorded for this section.
Oscilloscope CRT; glass envelope, side anode. Anode voltage: 4 kV (datasheet operating specification, not maximum rating). Deflection: Magnetic. Focusing: Combined. Screen color: Blue. Resolution/line size: 0.5 mm (datasheet). Brightness: 40 cd/m². Mass: 600 g. Green afterglow 0.35–0.7 s
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.