设计一个将普通双踪示波器改装成为多踪示波器的电路，包括多踪示波器的时钟电路、位移电路、衰减、放大和加法器电路，实现用示波器一路探头输入稳定显示四路被测信号波形。向连接好的电路输入四路不同的信号，可同时将其互不重叠地显示出来，并可以通过改变波段开关的闭合状态来实现对输出信号波形幅值的改变。-The general design of a dual-trace oscilloscope converted into a multi-trace oscilloscope circuit, including multi-trace oscilloscope clock circuitry shift circuit, attenuation, amplification and adder circuit, along with an oscilloscope probe input stable displays four measured signal waveform. Good connection to the circuit input four different signals, which can be displayed without overlapping, and by changing the band switch closed state to implement changes to the amplitude of the output signal waveform.