ALL meanings of preamplifier
pre·am·pli·fi·er
P p - noun preamplifier a device in the amplifier circuit of a radio or phonograph that increases the strength of a weak signal for detection and further amplification. 1
- noun preamplifier an electronic amplifier used to improve the signal-to-noise ratio of an electronic device. It boosts a low-level signal to an intermediate level before it is transmitted to the main amplifier 0
- noun preamplifier in a radio, phonograph, etc., an auxiliary amplifier for boosting the voltage of a weak signal before it reaches the input of the main amplifier 0