编号4：惠普HP8970AOperatingOnly使用与维修手册

OPERATING AND SERVICE MANUAL-HP 8970ANOISE FIGURE METER(Including Option 001)SERIAL NUMBERSThis manual applies directly to instruments withserial numbers prefixed 2438A.With the changes described in Section VII,thismanual also applies to instruments with serialnumbers2116A,2210A,2222A,2303A,and2414A.For additional important information about serialnumbers,see INSTRUMENTS COVERED BYMANUAL in Section I.HEWLETTPACKARDCopyright HEWLETT-PACKARD COMPANY 1981,19851501 PAGE MILL ROAD,PALO ALTO,CALIFORNIA,U.S.A.Operating Manual Part No.08970-90014Operating and Service Manual Part No.08970-90015Operating and Service Manual Microfiche Part No.08970-90016Printed:MAY 1985