Simple Two 555 Timers Bell Circuit Diagram

This is the Simple Two 555 Timers Bell Circuit Diagram. This simple scheme uses two Bell 555 timer. The frequency controlled capacitors, which should be preserved are almost identical in value with each other to achieve the best results. Fine tuning is done with the R1 and R2. The decay time is controlled by R3.[Link]

Simple Two 555 Timers Bell Circuit Diagram