Anodes; Anticathodes; Binoculars; Capacitators; Commutators; Headphones; Transformers; Transistors; Variometers; Anode batteries; Bicycle helmets; Burglar alarms; Carbon dioxide detectors; Carbon monoxide detectors; Cards with integrated circuits; CD cases; Cell phone cases; Computer keyboards; Conductors, electric; Electric capacitors; Electric conductors; Electric resistors; Electrical fuses; Electricity limiters; Electron tubes; Fuses; In-car telephone handset cradles; Integrated circuits;...