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

HP 4275A Operating Manual: Comb Bound & Protective Covers

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

CUSHMAN 302 FM DEVIATION METER OPERATING & SERVICE MANUAL

HP H01-8401A Leveler Amplifier Operating & Service Manual 08401-90001

HP 435A Power Meter Operating & Service Manual 00435-90011

HP 1968 Model 15127A Cable Amplifier Operating Note Manual.

HP DC Power Supply LVR Model 6271B Operating and Service Manual OEM 6F B8