Monthly Archives: October 2011


Building an amp

We needed more power, so John ordered a DC transformer from China and we got to work.      

Magnet winding

How do you make an electromagnet? Take magnet wire and wind it around a piece of ferrous metal. Easier said than done. Peter made an apparatus to hold multiple spools of magnet wire: Then we used a cordless drill to spin an iron core and winding the magnet wire: The result: a fat magnet!