The xylophone has eight notes, which are sounded by placing a finger onto the PCB, allowing a simple tune to be played. The conversion of key presses into the frequency of the note is done by a PIC micro-controller, pre-programmed with software for this application.

The student can mount the PCB, battery pack and speaker into a box they have designed to make a children's toy.

This kit contains:

• 1 x PP3 clip lead
• 1 x 3AA battery holder
• 1 x LM324 op-amp IC
• 1 x 14 pin IC holder
• 1 x PIC 12F675 pre-programmed with xylophone code
• 1 x 8 pin IC holder
• 1 x 3.3Kohm resistor
• 8 x 4.7Mohm resistors
• 1 x BC337 NPN transistor
• 1 x 50mm 8ohm speaker
• 0.5m connecting wire
• 1 x xylophone PCB

PCB dimensions: 93mm x 37.5mm.

Requires x3 AA batteries, not included.

This kit is supplied in a blister retail packaging complete with printed instructions. It is also available in a simple grip seal bag version without instructions.