FIRST AMENDMENT TO EXCHANGE AND MERGER AGREEMENT AND STOCKHOLDERS AGREEMENT First Amendment, dated as of September 25, 1998, to the Exchange and Merger Agreement, dated as of June 12, 1998 (the "Exchange Agreement"), among Wavetek Corporation...Exchange and Merger Agreement • October 6th, 1998 • Wavetek Wandel & Goltermann Inc • Instruments for meas & testing of electricity & elec signals
