top. AUDIBLE ILLUSIONS TUBE PREAMPLIFIERS: What is the purpose of a preamplifier? If you don't play records is one really necessary? In order to be able to drive an amplifier properly, there must be some device to switch the various line sources such as CD, tuner, tape etc.
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current).It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a proportionally greater ...
Ultra-low Noise Amplifier (LNA) MMICs Designed with the RF / Microwave Engineer in Mind. Custom MMIC has developed high performance, GaAs and GaN RF / Microwave ultra-low noise amplifiers (LNAs) to meet stringent design requirements for low bias current, low bias voltage, extremely low noise figure, high gain and broadband operation.