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Vacuum tubes perform their various functions on the principle of streaming electrons: that is electrons able to fly across space from one electrode to another. If there is air in the tube then this is a barrier to the electron's flight and the tube cannot function.
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How many vacuum tubes did the first generation computer have?
Oh yes - and for several generations after that. ENIAC, the first mainframe computer, had to be kept in a room with very heavy air conditioning (about 60 degrees) because of the heat generated by all the vacuum tubes.
How many vacuum tubes are in the Univac I computer?
It used 5200 vacuum tubes.
Do all vacuum tubes light up?
No, there are some cold cathode vacuum tubes. These do not light.
Where is a good place near Seattle where you can buy old vacuum tubes?
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
Where was vacuum tube was made?
who made the vacuum tubes
How many vacuum tubes in first generation computer?
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.
Why are the blood tubes called evacuated tubes?
Blood tubes for collecting lab specimens are called evacuated tubes because all air has been removed from them. The resultant vacuum allows them to fill automatically when connected to a vessel or other specimen source.
What technology replaced vacuum tubes in the second generation?
Vacuum tubes were first replaced by transistors, and later by integrated circuits.
Why modern devices use integrated circuit instead of vacuum tubes?
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.
What is reason for low vacuum in surface condenser?
Reasons for low vacuum: 1. Low gland sealing pressure 2. Condenser tubes choked 3. Condenser cooling water temperature high 4. Leakage in condenser tubes 5. Less cooling water flow
Vacuum tubes generation?
first
What has the author Karl R Spangenberg written?
Karl R. Spangenberg has written: 'Vacuum tubes' -- subject(s): Vacuum-tubes
