December 2023
Intermediate to advanced
846 pages
26h 46m
English
Content preview from Small Signal Audio Design, 4th Edition
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CHAPTER 12 Guitar preamplifiers
Electric guitar technology
The standard electric guitar technology uses the vibrations of a ferromagnetic string to modulate the magnetic field seen by the pickup windings. The field is only being modulated by a relatively narrow wire, and so the overall change in field is small. It is therefore necessary to use pick-up coils with a large number of turns to get a usable output voltage. This means the pickup has a large amount of inductance and a significant amount of series resistance because thin wire has to be used to physically fit in enough turns.
Electric guitars commonly have two or three pickups. In the case of three, one will be mounted just below the neck, one ...
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