Spintronic ammeters indicate the speed of current by the pitch of sound they make. The more current, the higher the pitch.
The pitch of sound generated by the spintronic ammeter is directly proportional to the current running around it. A small wedge attached to a diaphragm slides over a bumpy surface. As the wedge moves up and down over the bumps, it generates sound in the diaphragm.
Shipping calculated at checkout. All prices are VAT inclusive for countries within the EU. For countries outside of the EU, packages are subject to additional duties depending on order value.
- Standard shipping available
- Packages ship from the Netherlands.
For packages delivering outside of the EU please allow 1-2 weeks for delivery and customs processing.
Detailed shipping information can be found here.
Virtual Pack, PDF Puzzle Book, and Gift Cards are delivered digitally.