Specialized - Cathode Ray ·CathodeRay
European rectangular monochrome television picture tube with electrostatic focusing, magnetic deflection, and a metal-backed or aluminized screen. Manufacturer documentation supports high-voltage direct-view receiver service with compact wide-angle geometry.
Large rectangular all-glass television picture tube without ion trap, with filter glass, metal-backed white screen, electrostatic focusing, and 110-degree magnetic deflection.
Neoeightar 8-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
CRT section; source publishes high-voltage picture-tube operating data.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Interelectrode capacitances
Published
See source sheet for electrode-specific capacitance values
Application
Monochrome television picture tube
Television receiver service
Data set 02
Published operating points and test conditions from this source.
Screen color
White
TelevisionCRT
Focusing
Electrostatic
TelevisionCRT
Deflection
Double magnetic
TelevisionCRT
Screen useful dimension
514.5 mm
TelevisionCRT
Final accelerator voltage
16 kV
TelevisionCRT
Grid No.2 voltage
300 V
TelevisionCRT
Heater voltage
6.3 V
TelevisionCRT
Heater current
300 mA
TelevisionCRT
Focusing voltage range
0 to 400 V
TelevisionCRT
Grid No.1 extinction voltage
30 to 94 V
TelevisionCRT
Data set 03
Published operating points and test conditions from this source.
Final accelerator minimum voltage
13000 V
Final accelerator maximum voltage
18000 V
Maximum grid No.4 voltage
1000 V
Maximum negative grid No.4 voltage
500 V