Kay Elemetrics Corp CATV Test Equipment Catalog.

M/A-Com Passive Microwave Components Catalog By Hall-Mark Electronics Corp

Kay Attenuator Catalog.

National Semiconductor Corp Linear Integrated Circuits Catalog Vintage 1972

Cuttler-Hammer Sensor/Limit Switch Catalog 1985 Vintage Eaton Corp

Vintage KAY Electric Co. Mega-Plotter Catalog # 2010 For Smith Charts

Kay Attenuators & Test Equipment Catalog

Oriel Corp. 1985 Light Sources Monochromators Detection Systems Vol II Catalog.