本文向读者介绍一种利用发光二极管单向导电、发光显示的半导体特性制作的简易对线器。制作在一个自制的小木盒内(外形见图2)。②对线盒制作:将电池、发光二极管电位器等按照图1b联接好,安装在另一只小木盒内(外形见图2)。发光二极管和电位器旋轴引伸 This article introduces the reader to a simple alignment device that makes use of the one-way conductivity and light-emitting semiconductor properties of light-emitting diodes. Made in a self-made wooden box (shape see Figure 2). ② on the box production: The battery, light-emitting diode potentiometer and other connections in accordance with Figure 1b, installed in another small wooden box (see Figure 2). LED and potentiometer shaft extension