Musical DoorBell at Home Using 555 Timer and UM66

Hi friends Today we are going to build a door bell circuit. So lets get started.

Step 1: Circuit and Materials

Ne 555 timer

UM66

1M Resistor

1nf capacitor

47 ohm resistor

1uf capacitor

8 ohms speaker

Battery holder and batteries.

Step 2: Follow the Video Tutorial

watch the video to know how to build.

My english is too bad sorry!!

If you have any quires comment below.