00342nam a2200133Ia 450000100040000000500170000400800410002102000150006208200180007710000310009524500470012626000160017365000190018979120261006003459.0120911s9999    xx            000 0 und d  a0071004742  a621.38153 HEL  aCompiled By Helms, Harry L  aContemporary electronics circuits deskbook  aMcgraw-Hill  aSemiconductors