HP Hewlett Packard 8591A SPECTRUM ANALYZER 1.8GHz OPT 004 and HP-IB
Professional HP 8591A Demounted from a working R & D TEST-BENCH. OPT 004 PRECISION Frequency Reference. OPT 001 (75 ohm ) 9KHz / 1MHz to 1.8GHz. OPT 021 HP-IB. 004 et HP-IB. TESTED the mains function.