HP 11521A Mixer Operating Note 1969

HP 00422-90006 1969 Model 422A Crystal Detectors Operating Note Manual.

HP 15117-90000 1969 Model 15117A Sound Level Calibrator Operating Note Manual.

HP 15521-95000 Model 15521A 17 dB Standard Mismatch Operating Note Manual.

HP 00424-90026 1969 Model 424A Crystal Detectors Operating Note Manual.

HP 08403-90011 1969 Model H01-8403A Modulator Operating and Service Manual.

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

HP 01910-90901 1969 Model 1910A Delay Generator Operating & Service Manual.