Principle
An alternating voltage induced in a coil by a magnet is to be so amplified by transistor that it can be detected by a filament lamp.
Benefits
- No additional cable connections between the building blocks needed - clear arragned and quick setup
- Contact saftey due to puzzle blocks system
- Corrosion-free gold plated contacts
- Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside