DS

This is the Simple Homemade Melody Door Bell Circuit Diagram. In most of the homes the door bells are conventional ding-dong type. Most of us don’t like its sound. Due to mechanical moving parts with spring mechanism its long term durability is questionable. I had also one such door bell in my home. After a period of time its performance deteriorates and one time it becomes completely intolerable because of its noisy irritating sound. The new types of door bells available in market are bird sound door bell. They are costly. and even I didn’t like it because of its high frequency and high volume sound output.     Simple Homemade Melody Door Bell Circuit Diagram   So the idea came into my mind that why not to build a very simple door bell with few components that gives nice melodious output and that is at the less cost also. So I build this door bell with all the items available in home. Let us see how I have made it. Description First collect the required compone...

This is a Simple Bell Circuit with Two 555 Timers Project . This simple Bell circuit uses two 555 timers. The frequency is controlled by the capacitors that must be preserved almost identical in value to each other for best results. Fine tuning is done with R1 and R2. The decay time is controlled by R3.  Simple Bell Circuit Diagram