00499nam a2200145 a 450000500170000000800410001705000260005810000200008424500460010425000210015026000430017144000210021452000810023565000370031620140414131934.0110112s19uu    xx            00    eng d  aREF 621.381bB76 2000  aBridgman, Roger  aElectronics /cwritten by Roger Bridgman.  a1st American ed.  aNew York :bDorling Kindersley,c2000.  aEyewitness books  a Traces the history, discoveries, and devices of the science of electronics.  aElectronicsxJuvenile literature