Electric Guitar

Electric guitars are most often made with solid bodies since they depend upon electromagnetic pickups and amplifiers to produce the sound and are not dependent upon the resonance of the hollow body like the acoustic guitar. 电吉他通常采用实心琴身，因为它们依赖电磁拾音器和放大器来产生声音，不像原声吉他那样依赖空心琴身的共振。 One example of electric guitar is the Fender Stratocaster. It has three pickups with about 7600 turns (Guitar Handbook p62). Treble pickup near bridge and bass pickups at center and near neck. 电吉他的一种例子是芬达斯特拉多克aster（Fender Stratocaster）。它有三个拾音器，约有7600圈（吉他手册p62）。高音拾音器靠近琴桥，低音拾音器在中间和靠近琴颈。 A popular type of pickup is the humbucking pickup due to Seth Lover of Gibson, two coils wound in series in such a way that that stray magnetic fields from power cords, lights, etc. will induce opposing voltages in them, minimizing "hum". 一种流行的拾音器是 humbucking 拾音器，这是由 Gibson 的 Seth Lover 设计的。两个线圈以串联方式绕制，使得来自电源线、灯光等的杂散磁场会在它们中感应出相反的电压，从而减少‘嗡嗡声’。 There are several varieties of electric basses. 有几种不同类型的电吉他。 Electric Guitar Effects 电吉他效果 Guitar Pickups 吉他拾音器

The Fender Stratocaster

A solid-bodied electric guitar, the Fender Stratocaster has steel strings and three magnetic pickups, the back, middle and front pickups. The back pickup, situated closest to the bridge, has an offset angle of about ten degrees towards the fingerboard underneath the lower strings to give them more fundamental content. Its treble pole angles toward the bridge to give those strings more high harmonic content. This gives a gradual brightening of tone across the strings from bass to treble. The Stratocaster has a switch that operates these pickups as individuals or in combination. This guitar is noted for its high pitched screams produced by the shape of the body and the single coil pickups.

Guitar Pickups and Harmonic Content

Guitar Pickups and Harmonic Content 吉他拾音器与谐波内容 The three sets of pickups shown for an electric guitar such as the Fender Stratocaster allow the player to adjust the quality of the sound by choosing the amounts of signal used from each pickup. The knobs shown are volume controls for the three sets. 电吉他（如Fender Stratocaster）所示的三个拾音器组允许玩家通过选择每个拾音器组的信号量来调整声音的质量。所示的旋钮是三个拾音器组的音量控制。 Of the string modes shown, the fundamental will actually be much larger than the others, and the others diminish progressively. Using the pickup set to the right gives much more fundamental and a mellower sound. 在所示的弦模中，基频实际上会比其他频率大很多，而其他频率则依次减小。使用右侧的拾音器可以得到更明显的基频和更柔和的音色。

The use of a 5-position control switch allows a quick selection of pickup combinations. You can choose front pickup only, front and middle, middle only, back and middle and back only.

The Electric Bass

Tuning of four string electric bass is E-A-D-G, tuned in fourths with the lowest note being E1 at 41.2 Hz. This is the same tuning as the acoustic bass. The highest note produced is about G4 at 392 Hz. Tuning of the five string bass is B-E-A-D-G with lowest note B0=30.87 Hz. Six string tuning is B-E-A-D-G-C. The fretboard is longer than that of the ordinary electric guitar (about 90 cm compared to about 65 cm).

Note the wire-wound strings. Winding additional wire around a solid wire core makes possible the increasing of mass without adding excessive stiffness. This keeps the string frequencies closer to the frequencies of an ideal string .