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The 36 pages that link to Vacuum tube, each with the reason it gives.
ENIACRelated: Vacuum tubes served as ENIAC’s high-speed electronic switches.
Guitar amplifierRelated: Tube amplifiers use these devices in their preamp or power stages.
Atanasoff–Berry computerRelated: Vacuum tubes performed the machine’s electronic logical operations.
Philipp LenardRelated: Lenard used vacuum tubes to generate and study cathode rays.
John Vincent AtanasoffRelated: Vacuum tubes performed the ABC’s electronic computation and logic.