HP 8640A Signal Generator Operating and Service Manual December 1972 - See Desc.

HP Selective Voltmeter 3591A Operating and Service Manual 1972

HP Hewlett Packard 432A Power Meter Operating Service Manual OEM 1972

HP Agilent 03960-90030 1972 3960 Series Instrumentation Tape Recorder Manual.

Tylan GP-481 System Field Service Manual & Installation & Operation Instructions

HP 04436-99001 1972 Model 4436A Attenuator Operating & Service Manual.

TYLAN 1989 Controller Instruction Manual

TYLAN FM 360/361/362 Controller Operating and Service Manual