Vacuum Tubes (Electron Control)
Electronic components controlling electric current in a vacuum, foundational for early electronics like radio and computers.
Core metadata
- ID: vacuum_tubes_electron_control
- Era: Modern
- First known date: 1904 (exact)
- Region: United Kingdom and global electronics industry
- Review status: source_checked
- Maturity: N/A
Prerequisites
- Electricity (electricity)
- Electronics (electronics)
- Glassmaking (glassmaking)
- Incandescent Light Bulb (light_bulb)
- Vacuum Technology (Early) (vacuum_technology_early)
Dependents
- Computers (Mainframe/Early) (computers_early)
- Electron Microscope (electron_microscope)
- Microwave Relay Networks (microwave_relay_networks)
- Radio (radio)
Fields
- None.
Node sources
- John Ambrose Fleming Patents the Vacuum Tube (American Physical Society, 2024, generic_overview) • Supports: node
- Diode (IEEE History Center, 2026, museum) • Supports: node
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 5
- Average edge confidence: 69%
- Prerequisite sources: 5
- expert_inference: 5
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Electronics (electronics) | enabling | 68% | expert_inference | Electronics provides a capability that enables this technology without being the only possible path. |
|
| Glassmaking (glassmaking) | enabling | 68% | expert_inference | Glassmaking provides a capability that enables this technology without being the only possible path. |
|
| Electricity (electricity) | enabling | 68% | expert_inference | Electricity 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. |
|
| Incandescent Light Bulb (light_bulb) | enabling | 68% | expert_inference | Incandescent Light Bulb provides a capability that enables this technology without being the only possible path. |
|
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