A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between... 119 KB (15,318 words) - 11:44, 16 March 2024 |
A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical... 23 KB (2,514 words) - 16:32, 22 April 2024 |
This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. Before the advent of semiconductor devices... 329 KB (40,570 words) - 19:13, 31 March 2024 |
A vacuum (pl.: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective vacuus (neuter vacuum) meaning "vacant" or "void"... 67 KB (7,631 words) - 16:35, 5 April 2024 |
An X-ray tube is a vacuum tube that converts electrical input power into X-rays. The availability of this controllable source of X-rays created the field... 20 KB (2,631 words) - 18:51, 1 May 2024 |
Triode (redirect from Triode vacuum tube) A triode is an electronic amplifying vacuum tube (or thermionic valve in British English) consisting of three electrodes inside an evacuated glass envelope:... 30 KB (3,670 words) - 14:59, 1 April 2024 |
Vactrain (redirect from Vacuum tube train) A vactrain (or vacuum tube train) is a proposed design for very-high-speed rail transportation. It is a maglev (magnetic levitation) line using partly... 15 KB (1,730 words) - 14:39, 13 April 2024 |
Electronic oscillator (redirect from Vacuum tube oscillator) other vacuum-tube oscillators. Vacuum-tube feedback oscillators became the basis of radio transmission by 1920. However, the triode vacuum tube oscillator... 61 KB (6,588 words) - 19:15, 2 May 2024 |
Cathode (section Vacuum tubes) from the original on 2 January 2014. Poole, Ian (2012). "Vacuum tube electrodes". Vacuum Tube Theory Basics Tutorial. Radio-Electronics.com, Adrio Communications... 24 KB (2,871 words) - 16:57, 23 February 2024 |
traveling-wave tube (TWT, pronounced "twit") or traveling-wave tube amplifier (TWTA, pronounced "tweeta") is a specialized vacuum tube that is used in... 20 KB (2,379 words) - 06:28, 3 May 2024 |
In vacuum tube technology, HT or high tension describes the main power supply to the circuit, which produces the current between anode and cathode. It... 3 KB (471 words) - 15:30, 26 March 2024 |
vacuum tube in appearance, its operation does not depend on thermionic emission of electrons from a heated cathode. It is hence a cold-cathode tube (a... 22 KB (2,616 words) - 18:41, 28 March 2024 |
Valve amplifier (redirect from Vacuum tube amplifier) A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. Low to medium... 21 KB (2,898 words) - 05:48, 6 February 2024 |
The 807 is a beam tetrode vacuum tube, widely used in audio- and radio-frequency power amplifier applications. 807s were used in audio power amplifiers... 8 KB (897 words) - 21:58, 18 November 2023 |
Electronic symbol (section Vacuum tubes) mode, P-channel MOSFET Vacuum tube diode Vacuum tube triode Vacuum tube tetrode (pin letters are not part of the symbol) Vacuum tube pentode For multiple... 22 KB (1,540 words) - 11:00, 2 March 2024 |
Cathode ray (section Vacuum tubes) emitted by the negative electrode, or cathode, in a vacuum tube. To release electrons into the tube, they first must be detached from the atoms of the... 19 KB (2,640 words) - 01:20, 10 April 2024 |
Anode (section Vacuum tube anode) flows through the device. Similarly, in a vacuum tube only one electrode can emit electrons into the evacuated tube due to being heated by a filament, so... 20 KB (2,584 words) - 09:40, 11 April 2024 |
A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a... 265 KB (28,754 words) - 16:48, 1 May 2024 |
Rectifier (section Diode vacuum tube (valve)) of current. Physically, rectifiers take a number of forms, including vacuum tube diodes, wet chemical cells, mercury-arc valves, stacks of copper and... 64 KB (8,946 words) - 12:39, 25 March 2024 |
Vacuum-tube computers, now called first-generation computers, are programmable digital computers using vacuum-tube logic circuitry. They were preceded... 27 KB (939 words) - 07:29, 17 December 2023 |
Radio receiver (section Vacuum tube era) used in some early vacuum tube radios because they were more sensitive than the vacuum tube grid-leak detector. During the vacuum tube era, the term "detector"... 151 KB (16,580 words) - 23:57, 24 April 2024 |
Tube sound (or valve sound) is the characteristic sound associated with a vacuum tube amplifier (valve amplifier in British English), a vacuum tube-based... 44 KB (5,690 words) - 20:32, 29 March 2024 |
power triode is a radio transmitting vacuum tube which can also be used as an audio amplifier and modulation tube. Typically, the plate is machined from... 1 KB (122 words) - 21:28, 24 April 2024 |
Amplifier (section Vacuum tubes) amplify was the triode vacuum tube, invented in 1906 by Lee De Forest, which led to the first amplifiers around 1912. Vacuum tubes were used in almost all... 56 KB (7,058 words) - 21:05, 7 April 2024 |
Solar cooker (section Vacuum tube technology) of curvature. Evacuated tube solar cookers are essentially vacuum sealed between two layers of glass. The vacuum allows the tube to act both as a "super"... 30 KB (3,965 words) - 04:29, 9 April 2024 |
Electronic component (section Vacuum tubes (valves)) 'Numitron') Nixie tube Dekatron (aka glow transfer tube) Magic eye tube indicator Penetron (a 2 colour see-through CRT) A vacuum tube is based on current... 25 KB (2,703 words) - 09:46, 29 February 2024 |
Wunderlich refers to a series of vacuum tubes introduced in the early 1930s. Wunderlichs were designed to be used as full-wave detectors in AM radio receivers... 2 KB (217 words) - 03:53, 10 May 2022 |