Here we are going to discuss about SIMPLE MELODY MAKER CIRCUIT USING UM66 IC AND A NPN TRANSISTOR BC548.
Um66 Ic is designed to produce a melodious tone which is inbuilted. We can't alter the tone. This circuit may applicable to various alarm circuits, tone generating circuits and so on.
The circuit mainly consisting of
- UM66 IC
- NPN Transistor BC548
- 6V Battery
Water Tank Overflow Alarm Circuit
Rain Detector Alarm Circuit