Connect this kit to any 8 ohn speaker output and run three different strings of blinking lights (up to 150 watts each) for base, middle and treble ranges. Each channel has its own sensitivity control plus a master control.

Components: 5 resistors, 4 potentiometers, 4 capacitors, neon bulb, 3 SCRs, transformer, slide switch, 3 outlets, line cord

Principles taught: RC filters, SCRs, audio control