Level: Classic

Making a melody louder

A transistor amplifies the Melody IC so the passive buzzer rings out.

Open in the 3D builderReserve a kit
+−3VUM66+OUTpassiveNPNNPN
RunningIt works!Current flows from the battery's + side, through your blocks, and back to −.
  • Buzzer sounding

Try this

Compare it with the previous circuit.

Blocks you need