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Tremolo Circuit
Tremolo, in electronics, is the variation in amplitude of sound achieved through electronic means, sometimes mistakenly called vibrato, and producing a sound somewhat reminiscent of flanging, referred to as an "underwater effect". A variety of means are available to achieve the effect. For further information about the use of tremolo in music, including notation, see Tremolo. History The first self-standing electronic tremolo effects unit may have been produced by Harry DeArmond, DeArmond, in which a motor shakes a canister containing a "hydro-fluid" (not mercury as some people assume), oscillating the canister containing an electrolytic fluid that sends the signal to ground. Earliest references to DeArmond's tremolo unit date to 1941. Starting in the 1950s many companies began incorporating the effect into guitar amplifiers, including the Fender Musical Instruments Corporation, Fender Tremolux and Vibrolux: Leo Fender marked the effect on Fender amplifiers as "vibrato", conversely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vibrato
Vibrato (Italian language, Italian, from past participle of "wikt:vibrare, vibrare", to vibrate) is a musical effect consisting of a regular, pulsating change of pitch (music), pitch. It is used to add expression to vocal and instrumental music. Vibrato is typically characterised in terms of two factors: the amount of pitch variation ("extent of vibrato") and the speed with which the pitch is varied ("rate of vibrato"). In singing it can occur spontaneously through variations in the larynx. The vibrato of a string instrument and wind instrument is an imitation of that vocal function. Vibrato and tremolo The terms vibrato and tremolo are sometimes incorrectly used interchangeably, although (in the classical world) they are properly defined as separate effects with vibrato defined as a periodic variation in the pitch (frequency) of a musical note, and tremolo as a fast repetition of the same note (usually a semiquaver) in order to produce the audible effect of a longer note, es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Tube
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 electrodes to which an electric voltage, potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplifier, amplification and current rectifier, rectification. Non-thermionic types such as a vacuum phototube, however, achieve electron emission through the photoelectric effect, and are used for such purposes as the detection of light intensities. In both types, the electrons are accelerated from the cathode to the anode by the electric field in the tube. The simplest vacuum tube, the diode (i.e. Fleming valve), invented in 1904 by John Ambrose Fleming, contains only a heated electron-emitting cathode and an anode. Electrons can only flow in one direction through the device—fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surf Music
Surf music (or surf rock, surf pop, or surf guitar) is a genre of rock music associated with surf culture, particularly as found in Southern California. It was especially popular from 1958 to 1964 in two major forms. The first is instrumental surf, distinguished by reverb-heavy electric guitars played to evoke the sound of crashing waves, largely pioneered by Dick Dale and the Del-Tones. The second is vocal surf, which took elements of the original surf sound and added vocal harmonies, a movement led by the Beach Boys. Dick Dale developed the surf sound from instrumental rock, where he added Middle Eastern and Mexican influences, a spring reverb, and rapid alternate picking characteristics. His regional hit "Let's Go Trippin', in 1961, launched the surf music craze, inspiring many others to take up the approach. The genre reached national exposure when it was represented by vocal groups such as the Beach Boys and Jan and Dean. Dale is quoted on such groups: "They were surfi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fender Amplifiers
Fender amplifiers are a series of electric instrument amplifiers produced by the Fender Musical Instruments Corporation. The first guitar amplifiers attributed to Leo Fender were manufactured by the K&F Manufacturing Corporation (K&F) between 1945 and 1946. Later, Fender began building its own line of electric guitars. Fender amplifiers would become favorite of many famous guitarists such as Jimi Hendrix, Eric Clapton, and Stevie Ray Vaughan, also known in these cases for playing Fender guitars. Fender amps have come in many configurations and styles. The early K&F and Fender amplifiers relied upon vacuum tube circuitry, with solid-state models appearing in the late 1960s. Fender frequently updated the internal circuitry of its amps, and changed their appearance throughout its history. Early amplifiers: K&F, Woodie and Tweed The first " Fender" amplifiers were manufactured by Leo Fender and Doc Kauffman, doing business as the K&F Manufacturing Corporation. The amplifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guitar Player
''Guitar Player'' is an American popular magazine for guitarists, founded in 1967 in San Jose, California. It contains articles, interviews, reviews and lessons of an eclectic collection of artists, genres and products. It has been in print since late 1967. The magazine is currently edited by Christopher Scapelliti. Contents A typical issue of ''Guitar Player'' includes in-depth artist features, extensive lessons, gear and music reviews, letters to the magazine, and various front-of-book articles. Guitar Player TV In May 2006, the Music Player Network partnered with TrueFire TV to launch an internet-based television station for guitarists. It provides content similar to that of the magazine such as interviews and lessons. Guitar Player TV is provided at no cost to the user because of advertising and sponsorship. |
Sine Wave
A sine wave, sinusoidal wave, or just sinusoid is a curve, mathematical curve defined in terms of the ''sine'' trigonometric function, of which it is the graph of a function, graph. It is a type of continuous wave and also a Smoothness, smooth periodic function. It occurs often in mathematics, as well as in physics, engineering, signal processing and many other fields. Formulation Its most basic form as a function of time (''t'') is: y(t) = A\sin(2 \pi f t + \varphi) = A\sin(\omega t + \varphi) where: * ''A'', ''amplitude'', the peak deviation of the function from zero. * ''f'', ''frequency, ordinary frequency'', the ''Real number, number'' of oscillations (cycles) that occur each second of time. * ''ω'' = 2''f'', ''angular frequency'', the rate of change of the function argument in units of radians per second. * \varphi, ''phase (waves), phase'', specifies (in radians) where in its cycle the oscillation is at ''t'' = 0. When \varphi is non-zero, the entire waveform appears to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscillation
Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum and alternating current. Oscillations can be used in physics to approximate complex interactions, such as those between atoms. Oscillations occur not only in mechanical systems but also in dynamic systems in virtually every area of science: for example the beating of the human heart (for circulation), business cycles in economics, predator–prey population cycles in ecology, geothermal geysers in geology, vibration of strings in guitar and other string instruments, periodic firing of nerve cells in the brain, and the periodic swelling of Cepheid variable stars in astronomy. The term ''vibration'' is precisely used to describe a mechanical oscillation. Oscillation, especially rapid oscillation, may be an undesirable phenomenon in proc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grid Bias
In electronics, biasing is the setting of DC (direct current) operating conditions (current and voltage) of an active device in an amplifier. Many electronic devices, such as diodes, transistors and vacuum tubes, whose function is processing time-varying ( AC) signals, also require a steady (DC) current or voltage at their terminals to operate correctly. This current or voltage is called ''bias''. The AC signal applied to them is superposed on this DC bias current or voltage. The operating point of a device, also known as bias point, quiescent point, or Q-point, is the DC voltage or current at a specified terminal of an active device (a transistor or vacuum tube) with no input signal applied. A bias circuit is a portion of the device's circuit which supplies this steady current or voltage. Overview In electronics, 'biasing' usually refers to a fixed DC voltage or current applied to a terminal of an electronic component such as a diode, transistor or vacuum tube in a circuit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preamplifier
A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker. Without this, the final signal would be noisy or distorted. They are typically used to amplify signals from analog sensors such as microphones and pickups. Because of this, the preamplifier is often placed close to the sensor to reduce the effects of noise and interference. Description An ideal preamp will be linear (have a constant gain through its operating range), have high input impedance (requiring only a minimal amount of current to sense the input signal) and a low output impedance (when current is drawn from the output there is minimal change in the output voltage). It is used to boost the signal strength to drive the cable to the main instrument without significantly degrading the signal-to-noise ratio (SNR). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibson Falcon
The Falcon (GA-19RVT) was a guitar amplifier made by Gibson Guitar Corporation in 1961. With the Falcon and a few other models, Gibson was ahead of Fender in bringing an amplifier with reverb on the market. In addition, the Falcon also had tremolo. The Falcon got 14 watts out of two 6V6 tubes (the same tubes used in the comparable Fender Deluxe), and had a Jensen 12" speaker. The pre-amp was powered by three 6EU7 tubes, and a 7199 The 7199 is a vacuum tube, combining a pentode and triode. Typically, the pentode was used for the input stage, and the triode as a phase inverter. The tube was used in a number of American guitar amplifiers; the Gibson Guitar Corporation, for insta ... for the reverb circuit. It also has a 5V3GT rectifier tube in the V7 socket. Unlike Fender's later reverb amps (such as the Princeton Reverb), the Falcon had a fairly unusual placement of the reverb circuit: rather than being placed after the pre-amp section and having the wet signal mixed with the dry, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flanging
Flanging is an audio effect produced by mixing two identical signals together, one signal delayed by a small and (usually) gradually changing period, usually smaller than 20 milliseconds. This produces a swept comb filter effect: peaks and notches are produced in the resulting frequency spectrum, related to each other in a linear harmonic series. Varying the time delay causes these to sweep up and down the frequency spectrum. A flanger is an effects unit that creates this effect. Part of the output signal is usually fed back to the input (a "re-circulating delay line"), producing a resonance effect which further enhances the intensity of the peaks and troughs. The phase of the fed-back signal is sometimes inverted, producing another variation on the flanger sound. Origin As an audio effect, a listener hears a "drainpipe" or "swoosh" or "jet plane" sweeping effect as shifting sum-and-difference harmonics are created analogous to use of a variable notch filter. The term "flang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fender Princeton
The Fender Princeton was a guitar amplifier made by Fender. It was introduced in 1947 and discontinued in 1979. After Fender introduced the Champ Amp in 1948, the Princeton occupied the next to the bottom spot in the Fender line. Fender Princetons (as well as their sister amp the Princeton Reverb) from the early models into the 1970s models are highly valued particularly as recording amplifiers. The first Princeton, the "Woody" (so called for its uncovered wooden cabinet), was the smallest of the original Fender line of three amplifiers, an incredibly basic 3-watt practice amp with no controls at all, not even a power switch. The first widely produced Princeton, the 1948 tweed-covered "TV front," used one 6SL7 or 6SC7 dual-triode tube to provide two stages of RC-coupled voltage amplification in the preamplifier section; the power amplifier section used a single cathode-biased 6V6 beam power tetrode necessarily in Class A operation. The amplifier had a single volume control an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
