Here is an electronic percussion instrument constructed using a PMOS integrated circuit. It can produce eight percussion sound effects such as plates, drums and forks . If combined with a timing pulse circuit, it can form an automatic percussion accompaniment circuit in the keyboard. Due to the use of integrated circuits, the junction is simple, the components are used less, and the power supply is 6 volts, which consumes only 3 milliamps. Now introduce its circuit principle and debugging method below.
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