John Ambrose Fleming invented the vacuum tube in 1904.
It used 5200 vacuum tubes.
No, there are some cold cathode vacuum tubes. These do not light.
This would depend on the type of vacuum tubes needed. Any car part store will carry vacuum tubes for a car, general stores carry vacuum tubes for household vacuums, and AC part stores will carry vacuum tubes for the AC/Heating system of a house.?æ
who made the vacuum tubes
ENIAC was the first digital general purpose computer, built in 1946, and with 17,468 vacuum tubes. The Illiac I, the first computer built and owned by a US educational institution, had 2800 vacuum tubes. The IBM 604 had about 2000 vacuum tubes.
Vacuum tubes were first replaced by transistors, and later by integrated circuits.
Modern devices use integrated circuits instead of vacuum tubes because integrated circuits occupy less space than vacuum tubes, are more efficient, consumes less energy and are more reliable than vacuum tubes.
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Karl R. Spangenberg has written: 'Vacuum tubes' -- subject(s): Vacuum-tubes
Vacuum tubes vary from thumb size to larger than most people. Integrated circuits or ICs' are the size of you little finger nail. There was nothing worth remembering before vacuum tubes.
It is a cleaner machine
vacuum tubes