HP 1751A Single Channel Amplifier Operating and Service Manual 1963

HP 1752A High Gain Vertical Amplifier Operating and Service Manual 1962

HP 1801A Dual Channel Vertical Amplifier Operating And Service Manual 1976

HP 1750B Dual Trace Vertical Amplifier Operating and Service Manual 1964

HP 1806A Dual Differential Vertical Amplifier Operating Service Manual 1971

HP Model 140A Oscilloscope Operating And Service Manual 1963

HP 185A Oscilloscope Operating and Service Manual 1961

HP 7044B 7045B X-Y Recorder Operating and Service Manual 1980