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Trimmer (electronics)
A trimmer, or preset, is a miniature adjustable electrical component. It is meant to be set correctly when installed in some device, and never seen or adjusted by the device's user. Trimmers can be variable resistors (potentiometers), variable capacitors, or trimmable inductors. They are common in precision circuitry like Audiovisual, A/V components, and may need to be adjusted when the equipment is serviced. Trimpots (trimmer potentiometers) are often used to initially calibrate equipment after manufacturing. Unlike many other variable controls, trimmers are mounted directly on circuit boards, turned with a small screwdriver and rated for many fewer adjustments over their lifetime. Trimmers like trimmable inductors and trimmable capacitors are usually found in superhet radio and television receivers, in the intermediate frequency (IF), oscillator and radio frequency (RF) circuits. They are adjusted into the right position during the alignment procedure of the receiver. General ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12 Board Mounted Potentiometers
1 (one, unit, unity) is a number, Numeral (linguistics), numeral, and glyph. It is the first and smallest Positive number, positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit (measurement), unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral. In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In Digital electronics, digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions. In math ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worm Gear
A worm drive is a gear train, gear arrangement in which a worm (which is a gear in the form of a Screw thread, screw) meshes with a worm wheel (which is similar in appearance to a spur gear). Its main purpose is to translate the motion of two perpendicular axes or to translate circular motion to linear motion (example: band type hose clamp).The two machine element, elements are also called the worm screw and worm gear. The terminology is often confused by imprecise use of the term ''worm gear'' to refer to the worm, the worm wheel, or the worm drive as a unit. The worm drive or "endless screw" was invented by either Archytas of Tarentum, Apollonius of Perga, or Archimedes, the last one being the most probable author.Witold Rybczynski, ''One Good Turn (Rybczynski book), One good turn : a natural history of the screwdriver and the screw''. London, 2000. Page 139. The worm drive later appeared in the Indian subcontinent, for use in roller cotton gins, during the Delhi Sultanate in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IF Transformer Cutaway
If or IF may refer to: *If (preposition), a preposition used in English conditional sentences * If (subordinator), a subordinator used for English subordinate interrogative clauses Arts and entertainment Film and television * '' If....'', a 1968 film starring Malcolm McDowell * ''IF'' (film), a 2024 fantasy film about imaginary friends * ''If...'' (TV series), a series of BBC drama-documentaries * "If..." (''Desperate Housewives''), a 2010 episode of ''Desperate Housewives'' Gaming * IF, a character in the ''Hyperdimension Neptunia'' game series * Interactive fiction, text-based computer games featuring interactive stories and environments * '' Shin Megami Tensei If...'', a 1994 video game in the ''Shin Megami Tensei'' series * ''Kill la Kill the Game: IF'', a 2019 video game based on the '' Kill la Kill'' anime Literature * ''If'' (magazine), subtitled "Worlds of Science Fiction" * ''IF Magazine'', ''Inside Film'', Australian magazine * ''If...'' (comic), a political com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IF Transformer
If or IF may refer to: *If (preposition), a preposition used in English conditional sentences * If (subordinator), a subordinator used for English subordinate interrogative clauses Arts and entertainment Film and television * '' If....'', a 1968 film starring Malcolm McDowell * ''IF'' (film), a 2024 fantasy film about imaginary friends * ''If...'' (TV series), a series of BBC drama-documentaries * "If..." (''Desperate Housewives''), a 2010 episode of ''Desperate Housewives'' Gaming * IF, a character in the ''Hyperdimension Neptunia'' game series * Interactive fiction, text-based computer games featuring interactive stories and environments * '' Shin Megami Tensei If...'', a 1994 video game in the ''Shin Megami Tensei'' series * ''Kill la Kill the Game: IF'', a 2019 video game based on the '' Kill la Kill'' anime Literature * ''If'' (magazine), subtitled "Worlds of Science Fiction" * ''IF Magazine'', ''Inside Film'', Australian magazine * ''If...'' (comic), a political com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double-tuned Amplifier
A double-tuned amplifier is a tuned amplifier with transformer coupling between the amplifier stages in which the inductances of both the primary and secondary windings are tuned separately with a capacitor across each. The scheme results in a wider bandwidth (signal processing), bandwidth and steeper Skirt (filtering), skirts than a single tuned circuit would achieve. There is a critical value of transformer Coupling coefficient (inductors), coupling coefficient at which the frequency response of the amplifier is maximally flat in the passband and the Gain (electronics), gain is maximum at the resonant frequency. Designs frequently use a coupling greater than this (over-coupling) in order to achieve an even wider bandwidth at the expense of a small loss of gain in the centre of the passband. Cascade connection, Cascading multiple stages of double-tuned amplifiers results in a reduction of the bandwidth of the overall amplifier. Two stages of double-tuned amplifier have 80% of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permeability (electromagnetism)
In electromagnetism, permeability is the measure of magnetization produced in a material in response to an applied magnetic field. Permeability is typically represented by the (italicized) Greek letter Mu (letter), ''μ''. It is the ratio of the Magnetic field, magnetic induction B to the magnetizing field H in a material. The term was coined by William Thomson, 1st Baron Kelvin in 1872, and used alongside permittivity by Oliver Heaviside in 1885. The reciprocal of permeability is magnetic reluctivity. In SI units, permeability is measured in Henry (unit), henries per Metre, meter (H/m), or equivalently in newton (unit), newtons per ampere squared (N/A2). The permeability constant ''μ''0, also known as the magnetic constant or the permeability of free space, is the proportionality between magnetic induction and magnetizing force when forming a magnetic field in a classical vacuum. A closely related property of materials is magnetic susceptibility, which is a Dimensionless ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Super High Frequency
Super high frequency (SHF) is the ITU designation for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz). This band of frequencies is also known as the centimetre band or centimetre wave as the wavelengths range from one to ten centimetres. These frequencies fall within the microwave band, so radio waves with these frequencies are called microwaves. The small wavelength of microwaves allows them to be directed in narrow beams by aperture antennas such as parabolic dishes and horn antennas, so they are used for point-to-point communication and data links This article from the beginning of the microwave era predicted the future value of microwaves for point-to-point communication. and for radar. This frequency range is used for most radar transmitters, wireless LANs, satellite communication, microwave radio relay links, satellite phones (S band), and numerous short range terrestrial data links. They are also used for heating in industrial microwave h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bourns TRIMIT Trimming Potentiometer 2016-11-06
Bourns may refer to: * Arthur Bourns (1919–2015), chemistry professor and university administrator * Frank Swift Bourns Frank Swift Bourns (1866 – 1935) was an American ornithologist and medical doctor. He was involved in two different expeditions to the Philippines with Dean Conant Worcester to gather natural history specimens. From 1887 to 1888 they partici ... (1866–1935), ornithologist and doctor * Bourns College of Engineering, Riverside, California, U.S. * Bourns, Inc., American electronics corporation {{disambiguation, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10K Trimpot
1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral. In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions. In mathematics The number 1 is the first natural number after 0. Each natural number, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
