This is a HICKOK Model 1890 In-Circuit Transistor Tester with Manual Military. It is an untested item that may or may not function properly. The brand is Hickok and it was manufactured in the United States. This tester is designed for testing tubes and comes in the category of Business & Industrial, Test, Measurement & Inspection, Testers & Calibrators, Tube Testers. The model number of this item is hickok model 1890. Please note that this item is being sold for parts only and not in working condition, so please bid accordingly.