What is Preamplifier?
[[File:SWTPC PreAmp.jpg|thumb]] '''Preamplifier''' is a type of electronic amplifier. It doesn't have enough [[power]] to feed [[loudspeaker|speakers]]. Rather a preamplifier amplifies weak signals, for example from a [[microphone]], for electronic processing or distribution. Early preamplifiers used [[vacuum tube]]s. Since the [[1960s]], most electronic amplifiers have been built with [[transistor]]s. Transistors are lighter, less expensive, and more reliable. == Related pages == {{Commonscat|Audio preamplifiers}} * [[Amplifier]] [[Category:Electronic musical instruments]] [[Category:Electronics]] [[Category:Audio technology]] {{music-stub}}