HP 00651-90007 1974 Model 651B Test Oscillator Operating & Service Manual.

HP 8552B Spectrum Analyzer IF Section Operating and Service Manual 1974

HP 00345-90007 1974 Model 354A Coaxial Step Attenuator Operating Note Manual.

HP 00212-2 Model 885A Waveguide Phase Shifter Operating Note Manual.

HP 00432-90013 1974 Crystal Detector 423A 8470A Operating Note Manual.

HP 05375-90005 1970 Model 5375A Keyboard Operating & Service Manual.

HEWLETT PACKARD 3730A DOWN CONVERTER OPERATING & SERVICE MANUAL June 1974

HP 01110-90902 1968 Model 110A Current Probe Operating Note Manual.