Model T-36B is a modern and compact Tube Tester designed to provide speedy yet efficient operation. The Model T~36i will test tube types used in Radio, Hi-Fi, Monochrome, Color TV, etc., for quality of emission and inter-electrode shorts. Sockets and circuits have been provided for testing the new Noval and Stib-Minar types in addition to the Octal, Loctal and 7-pin miniature types. Before attempting to use the tester, we suggest you read the operating instructions contained in this manual in order to acquire a proper understanding of how this unit works.