This is a GENUINE Hewlett Packard HP 8970A Noise Figure Meter Operating & Service Manual (printed in Aug. 1982). This manual contains super illustrations and diagrams as well as having in-depth operating, maintenance, and service/repair information for these HP noise figure meters. The cover is in very good shape. The spline is tight and intact with a small repair at the base. This contains several hundred pages and fold-out diagrams. This is complete and in VERY GOOD overall condition. FREE S & H. Thanks for viewing........Triple K