00381    a2200133   4500020001500000082001800015100002200033245006600055250000900121260004700130300002200177650002800199650002000227  a0070589550  a621.3815bTOK  aTokheim, Roger L.  aSchaum's outline of theory and problems of digital principles  a3rd.  aNew  DelhibTata McGraw - Hillc1980g2004  avii, 352p.c28cm.  aCOMPONENTS AND CIRCUITS  aAPPLIED PHYSICS