00217nam a22000857a 4500082001800000100003900018245002900057260003400086300001100120  a621.381 VAL'B  aNEVILLE/ NOOGER / VALKENBURGH, VAN  aBASIC ELECTRONICS PART-I  aLONDONbTECHNICAL PRESSc1970  a6-127P