The CI-73 uses your computer's sound card as an oscilloscope and spectrum analyzer so you can "see" the electronic signals created with your Snap Circuits SC-300 or SC-500 set.

The Snap Circuits PC1 - PC73 Instruction Manual (not included) shows you build over 73 BONUS PROJECTS using your Windows-based PC (32 projects require the SC-500). Comes with all of the interface parts you need and the software. Great for introducing electronics through a computer. Acts as a scope and allows you to see the signals in the circuit.

This is the same software INCLUDED with the SC750 and the UC60, UC70 and UC80 Upgrade kits,

Brand:	Elenco Electronics
Brand Part Number:	CI-73
Our Part Number:	h4931