Transistors & ICs

UM66 Melody IC

Plays a tune on its OUT terminal (right). + at the top, − at the bottom.

Family: Transistors & ICs
Terminals: + (top), OUT (right), − (bottom)

Press the block to see it work.

Transistors & ICs blocks

Transistors and ICs let a small signal control a bigger one. A transistor acts as an electronic switch or amplifier, and the Melody IC generates a tune on its own.

Circuits that use this block

ClassicLet's make some musicThe Melody IC drives a passive buzzer. It is faint on its own.
ClassicMaking a melody louderA transistor amplifies the Melody IC so the passive buzzer rings out.

Other blocks in this family

S8050 NPN TransistorAn electronic switch. Base on the left, collector at the top, emitter at the bottom. Always use a resistor on the base.
S8550 PNP TransistorWorks the other way round. Base on the left, emitter at the top, collector at the bottom.

All blocks