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"Valve" is the British word for Vacuum Tube, so for the British (which the person asking this question probably is) transistors did replace valves. Therefore the answer remains that values(vacuum tubes) where large and bulky, in addition they require high levels of power to function and created substantial heat and were quite fragile. The creation of the Transistor and then micro chip allowed for portability, lower levels of operation power to be required and reduced costs due to mass production
Wiki User
∙ 7y ago
Wiki User
∙ 8y agoThey did not replace valves, they replaced Vacuum Tubes. Vacuum tube radios were big and heavy, due to the fact that they required large Transformers to power the vacuum tubes that used allot of energy. This also meant they needed large batteries. The small transistor used very little power and allowed manufacture to make portable radios extremely small.
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How does computing valve work?
Just like the valves used in valve stereo equipment or old radios. Except in computers (like the transistors in modern computers) valves are usually driven fully into saturation and cutoff, while in a valve stereo or old radio valves are usually operated as linear amplifiers with minimal distortion.
Are transistors very large compared to the other valves used in apple macs?
Apple Macs don't use valves (computers haven't used valves since around 1955). However, transistors are very much smaller than valves (by several orders of magnitude), are much more reliable, are cheaper to mass produce and offer much greater efficiency.
How can pneumatic system trobleshoot?
Replace the rubber gasket. Inspection of air valves. Compressor control.
What is the average life expectancy of residential hot water angle valves How often should they be replaced?
No actual life expectancy, when it needs replaced, replace it.
How many valves are available in machines?
they have two - four valves
How does computing valve work?
Just like the valves used in valve stereo equipment or old radios. Except in computers (like the transistors in modern computers) valves are usually driven fully into saturation and cutoff, while in a valve stereo or old radio valves are usually operated as linear amplifiers with minimal distortion.
What have taken the place of glass valves in radios?
transistor
What has been used to replace valves in modern computers?
They haven't been replaced! Only now they are much smaller and switched on and off by nano-bots that receive instructions from user input.
Are transistors bigger or smaller than valves?
Yes they are. The invention of the transistor signalled the end of large, bulky valves in circuits. Modern transistors are so small - that thousands can be housed on one microchip.
What component replaced valves in the second generation computer?
discrete transistors
What was a Hybrid Radio?
One form of hybrid radio, appearing in the late 1950s, used valves (vacuum tubes) and transistors together. Early transistors worked fine at audio frequencies, and were much more efficient, using much less battery power. They could not perform at radio frequencies, however. Vacuum tubes had been used at radio frequencies for many years, but the push to miniaturise them led to lower performance. Even the subminiature types (about the diameter of a cigarette) still used a lot of battery power to operate. The hybrid radio used valves in the radio frequency end (usually three) and transistors in the audio end (usually two). This design made best use of the advantages of valves and transistors. Transistor development was rapid, and all-transistor radios appeared soon after hybrid sets were marketed. They were only available as battery portables. Hybrid sets are among the rarest of mass-produced radios.
Why did the colossus need valves?
Because - when Colossus was built (in 1943), microchips had yet to be invented ! Microchips replaced valves and transistors in newer computers.
Are transistors very large compared to the other valves used in apple macs?
Apple Macs don't use valves (computers haven't used valves since around 1955). However, transistors are very much smaller than valves (by several orders of magnitude), are much more reliable, are cheaper to mass produce and offer much greater efficiency.
What are silicon chips replaced of?
Silicon chips replaced individual transistors and before that vacuum tubes (valves).
Which farm animals heart valves can be used to replace human valves?
Pigs
What came after the transistor radio?
The scientists that were responsible for this invention was John Bardeen, Walter Brattain, and William Shockley. Bardeen, with a Ph.D. in mathematics and physics from Princeton University, was a specialist in the electron conducting properties of semiconductors.
How much valves are in a modern day computer?
There are no valves in a modern computer. If by valves you mean vacuum tubes, the equivalent is a transistor. Modern CPUs have many transistors/gates on their dies. The SandyBridge i7, a near-top end general purpose computer COU can have 2.2 billon transistor elements on the CPU die. Of course there are many more transistors incorporated in the logic chips, controllers and video cards in a computer as well.
