Beschrijving
Kids discover the wonders of electricity with this great kit containing everything they need to build a real doorbell without using any tools. It includes a transistor, resistors, a transducer, an Led, connector wires and springs, and a push button. All parents need to provide is a 9-volt battery.
Boekdetails
Formaat
Hardcover
Pagina's
16 pagina's
Taal
Engels
Gepubliceerd
okt. 1, 2000
Uitgever
Troll Communications Llc
ISBN-10
0816761965
ISBN-13
9780816761968