采用555的双频噪声发生器电路

这是一个简单的噪声发生器电路。一个IC定时器IC555是一个重大装备的数量。小电路。适用于各种测试circuits.Operation电路，当电源电路。它会生出高频率使用电路IC1的多态设备条例草案“布雷特福斯特。 R1，C1和C2的频率。频率会在三条腿。将扩大与IC2输出引脚5，以驱动扬声器。高频率的声音。但是，当开关S1，电容。
C1，C2的值更高密度的并行方式继续循环。 IC1的会生出低频到IC2的引脚3的出，然后驱动扬声器。该电路可引起有两个频率的音频信号源。

This is a simple noise generator circuit. An IC Timer IC 555 is a number of major equipment. Small circuit. Suitable for various test circuits.Operation of the circuit is when the power supply to the circuit. It will give birth to high frequency by using a circuit IC1 to a multi-state Devices Bill Brett Foster. The frequency with which R1, C1 and C2. The frequency will be out in three legs. And will be expanded with the IC2 output pin out of 5 in order to drive the speakers. The high-frequency sound. But when the switch S1, capacitor.
C1, which continue to cycle in a manner parallel to the C2 value higher density. IC1 will give birth to low-frequency out of pin 3 to IC2 then drive the speakers. This circuit can cause the audio source has two frequency.