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416.简单信号发生器这种信号发生器提供两种电平的440Hz正弦波输出.供电电源处于1.5V和16V之间,因此,一个1.5V的单电池就能作供电电源。运算放大器IC(1a),作为一个矩形波发生器;R_4和C_1的值,决定于这种器件触发输出的频率。预调P_1能将输出调整为方波(可通过收听者来调整,而失真度最小)。网络R_5—R_6—C_2在信号与一部分电源
416. Simple Signal Generator This signal generator provides two levels of 440Hz sine wave output with power supply between 1.5V and 16V so a single 1.5V battery can be used as the power supply. The op amp IC (1a) acts as a rectangular wave generator; the values of R_4 and C_1 depend on the frequency at which this device triggers the output. Presetting P_1 can adjust the output to a square wave (adjustable by the listener with minimal distortion). Network R_5-R_6-C_2 is in signal with part of the power supply