HP Model 3480A & 3480B Digital Voltmeter Operating and Service Manual 1973

HP 11665-90011 1973 Model 1665B Modulator Operating & Service Manual.

HP Model 3485A Scanning Unit Operating and Service Manual 1973

HP 08472-90011 1973 Crystal Detector 8472A Operating Note Manual.

HP 00456-90004 1973 Model 456A AC Current Probe Operating & Service Manual.

HP 10284-90902 Model 10284A Current Loop Interface Operating Note Manual.

HP Agilent 01700-90910 1973 Model 1700B Oscilloscope Operating & Service Manual.

HP 08472-90011 1973 Model 8472A Crystal Detector Operating Note Manual.