Remote operated musical bell using UM3481

This article is about remote operated musical bell using UM3481.¬†The M348X series IC is a mask-ROM-programmed multi melody generator , implemented by¬†CMOS technology. It is designed to play the melody according to the previously programmed¬†information¬†and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The¬†device¬†also includes a pre-amplifier which…

Read More

Test UM3481 musical circuit

The M348X series IC is a mask-ROM-programmed multi melody generator , implemented by¬†CMOS technology.It is designed to play the melody according to the previously programmed¬†information¬†and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The¬†device¬†also includes a pre-amplifier which provides a simple interface to ¬†the driver circuit. The M3481…

Read More