HP 08472-90014 1975 Model 8472B Crystal Detector Operating & Service Manual

HP / Agilent 08472-90022 1978 8472B Crystal Detector Operating & Service Manual.

HP 423B 8470B Crystal Detector Operating & Service Manual

HP 11664A Detector Operating & Service Manual

HP 00423-90103 Model 423B 8470B Crystal Detector Operating & Service Manual.

HP 00423-90019 423A 8470A Crystal Detector Operating & Service Manual