Amplifier FR4 Citcuit Board Single sided pcb
Single sided pcb manufacturing parameters：
Amplifier circuit, also known as amplifier, is one of the most widely used electronic circuits and the basic unit circuit of other electronic circuits. The so-called amplification is to amplify the weak input signal (abbreviated as the signal, refers to the changing voltage, current, etc.) to the desired amplitude and to the same regularity as the original input signal, that is, to amplify without distortion. Amplification makes sense only when it is not distorted. The essence of the amplifier circuit is the control and conversion of energy. According to the difference between the common end of the input circuit and the output circuit, there are three basic forms of the amplifier circuit: common emitter amplifier circuit, common collector amplifier circuit and common base amplifier circuit.
Since modern digital devices (including CD and DVD players, radio receivers, and tape cartridges) already provide "flat" signals at the line level, no preamplifiers are required except as volume controls and sound source selectors.An alternative to a single preamplifier is to simply use passive volume and switching controls, sometimes integrated into a power amplifier to form an integrated amplifier.