Snap Circuits UC-30 Electronics Exploration Upgrade Kit | SC-100 to SC-300 | Upgrade Junior to Classic Get the additional parts and manuals to take your Snap Circuit Kit to the next level UC-30 Converts your Snap Circuits SC-100 to the Snap Circuits SC-300 Includes 30 new parts including AM radio components, transistors, ICs, capacitors, resistors, and more 200 more projects Part of the extremely popular Snap-Circuits educational electronics series from Elenco Electronics