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The recent resurgence in popularity of traditional tube-type audio equipment in guitar amplifiers and home audio systems has led to a reappearance of motorboating problems. The problem is sometimes caused in older equipment by the evaporation of the electrolyte from old-style "wet" electrolytic capacitors used in the power circuits of legacy ...
The guitar tech also might perform any of a variety of maintenance tasks, such as checking that the string height of the guitars is set properly, modifying ("dressing") the height and arc of the frets, adjusting the intonation of the instruments, checking that tubes (valves) on tube amplifiers are working properly, and that cables are in good condition and free from crackles and hum caused by ...
The problem occurs notably in RF, [1] audio, and other electronic amplifiers [2] as well as in digital signal processing. [3] It is one of the fundamental issues addressed by control theory. [4] [5] [6] Parasitic oscillation is undesirable for several reasons.
Many electric guitar players intentionally overdrive their amplifiers (or insert a "fuzz box") to cause clipping in order to get a desired sound (see guitar distortion).. Some audiophiles believe that the clipping behavior of vacuum tubes with little or no negative feedback is superior to that of transistors, in that vacuum tubes clip more gradually than transistors (i.e. soft clipping, and ...
A few years after moving from Seattle, Washington to Los Angeles, California in 1976, Steven Fryette landed a job as a repair technician at Valley Arts Guitar. Fryette honed his skills doing custom work, repairs, and modifications for the likes of Eddie Van Halen, Steve Lukather, Larry Carlton, Tommy Tedesco, Ry Cooder, Buzz Feiten, Carlos Rios, Duane Eddy, and many other guitar players.
A guitar amplifier (or amp) is an electronic device or system that strengthens the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which are typically housed in a wooden cabinet.
Block diagram of the signal-flow for a common feedback loop [1]: 118 . Audio feedback (also known as acoustic feedback, simply as feedback) is a positive feedback situation that may occur when an acoustic path exists between an audio output (for example, a loudspeaker) and its audio input (for example, a microphone or guitar pickup).
The Williamson amplifier is a four-stage, push-pull, ... The article dealt extensively with construction, tuning and troubleshooting issues, [37] [38] [21] ...