Asked By: Dominic Bell Date: created: Apr 27 2021
What is the purpose of vacuum tubes
Answered By: Reginald Hernandez Date: created: Apr 30 2021
An electronic device that controls the flow of electrons in a vacuum. It is used as a switch, amplifier or display screen (CRT). Used as on/off switches, vacuum tubes allowed the first computers to perform digital computations.
Asked By: Angel Wilson Date: created: Jun 20 2021
How does a vacuum tube diode work
Answered By: Charles Gray Date: created: Jun 21 2021
A diode is the simplest and earliest form of vacuum tubes. It has two electrodes: an anode (i.e., the plate) and a cathode. When the cathode is hot, its electrons get excited. … If the plate is more positive than the cathode, these electrons will be attracted towards it and a current will flow through the tube.
Asked By: Hunter Reed Date: created: Apr 03 2022
Why do tube amplifiers sound better
Answered By: Louis Wood Date: created: Apr 06 2022
Tube amplifiers sound better because of the euphonic distortions they add to the music, as well as plenty of other reasons I'll cover below. … The ways that tubes distort when pushed to the edge are much more musical than the artificial sounds that come from transistor amplifiers when overdriven.
Asked By: Owen Patterson Date: created: Dec 03 2021
How do vacuum tubes amplify
Answered By: Peter Torres Date: created: Dec 04 2021
To make an amplifier, a large positive voltage (several hundred volts) is applied to the plate through some sort of load. Then a signal is fed into the control grid. A relatively small amount of change in the grid voltage causes a much bigger change in the voltage across the load.
Asked By: Wallace Cooper Date: created: Dec 16 2021
Are vacuum tubes still in use
Answered By: Dennis King Date: created: Dec 18 2021
Most of you still have vacuum tubes in your homes
That is slowly changing, but for now, vacuum tubes will be a feature in American households for years to come. Though vacuum tubes still have their uses with medical and military applications, the most prolific consumers in modern times have to be audiophiles.
Asked By: Jason Johnson Date: created: Feb 12 2021
When did RCA stop making vacuum tubes
Answered By: Charles Brooks Date: created: Feb 13 2021
Although RCA closed its electron tube operation in 1976, 807s are still made in Russia and China, and audiophiles continue to debate the technical and aesthetic qualities of 807s from different companies, eras, and countries.
Asked By: Carl Jones Date: created: Jul 08 2021
How do tubes amplify sound
Answered By: Timothy Jones Date: created: Jul 11 2021
A vacuum tube amplifies because of it's thermionic control characteristics. Vacuum tubes modulate a stream of electrons that flow from the tube cathode to the tube plate by impressing a control voltage on the tube grid. … So in mathematical terms, the tube plate current is a function of the grid voltage.
Asked By: Mason Jones Date: created: Apr 21 2021
How do amplifier tubes work
Answered By: Ethan Bailey Date: created: Apr 22 2021
Electrons flowing through a tube originate from ground. The cathodes of the EF86 and the EL84 each have a resistor attached to ground. This creates the small DC voltage on their cathodes to prevent the electrons from flowing. When the guitar signal reaches the grid, the electrons then flow.
Asked By: Wyatt Washington Date: created: May 09 2022
Why did we stop using vacuum tubes
Answered By: Evan Bennett Date: created: May 12 2022
Vacuum tubes suffered a slow death during the 1950s and '60s thanks to the invention of the transistor—specifically, the ability to mass-produce transistors by chemically engraving, or etching, pieces of silicon. Transistors were smaller, cheaper, and longer lasting.
Asked By: Miles Taylor Date: created: Nov 15 2021
What is the use of vacuum tubes in first generation computers
Answered By: Sean Scott Date: created: Nov 16 2021
The period of first generation was from 1940-1956. The computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU (Central Processing Unit). These tubes, like electric bulbs, produced a lot of heat and the installations used to fuse frequently.
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