Spintronics Act Two is an advanced educational puzzle game kit from Upper Story that builds on Act One, designed to teach complex electronics through mechanical, physical circuits. Players create advanced, functional circuits using components like transistors, inductors, and capacitors, continuing the "time-winding adventure". It requires the Act One kit to play. 
Key Features of Spintronics Act Two:
- Advanced Components: Includes two transistors, a 55 H inductor, a 500 Ω resistor, junctions, and a 1.2 mF capacitor/voltmeter.
- Expansion: Extends the puzzle-solving challenges of the first set into more intricate, complex circuit designs.
- Educational Goal: Designed for ages 8 to adult to understand how components work, not just in theory, but as physical, moving parts.
- Component List: The kit includes the Act Two puzzle book and additional hardware to build more advanced systems.
- Availability: Available directly through Upper Story and sometimes bundled with Act One and the Power Pack.