Cathode Ray Tube (CRT) Displays
Vacuum tubes generating images by directing an electron beam onto a phosphorescent screen.
Core metadata
- ID: cathode_ray_tube_crt_displays
- Era: Modern
- First known date: 1897 (exact)
- Region: Germany and global electronics
- Review status: source_checked
- Maturity: N/A
Prerequisites
- Electricity (electricity)
- Electromagnetism (Maxwell's Equations) (electromagnetism_maxwell)
- Glassmaking (glassmaking)
- Vacuum Technology (Early) (vacuum_technology_early)
Dependents
- Graphical User Interface (GUI) (graphical_user_interface_gui)
- Radar (Radio Detection and Ranging) (radar_radio_detection_and_ranging)
- Television (television)
Fields
- None.
Node sources
- Cathode-Ray Tube (Encyclopaedia Britannica, 2026, textbook) • Supports: node
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 4
- Average edge confidence: 70%
- Prerequisite sources: 4
- expert_inference: 4
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Glassmaking (glassmaking) | enabling | 68% | expert_inference | Glassmaking provides a capability that enables this technology without being the only possible path. |
|
| Electromagnetism (Maxwell's Equations) (electromagnetism_maxwell) | enabling | 68% | expert_inference | Electromagnetism (Maxwell's Equations) provides a capability that enables this technology without being the only possible path. |
|
| Vacuum Technology (Early) (vacuum_technology_early) | historical_predecessor | 75% | expert_inference | Vacuum Technology (Early) is an earlier historical predecessor or foundation, not a one-to-one engineering dependency. |
|
| Electricity (electricity) | enabling | 68% | expert_inference | Electricity provides a capability that enables this technology without being the only possible path. |
|
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