Instruction Manual DD-I Digital Frequency Display

Instruction Manual DD-I Digital Frequency Display, written & published by Spectronics Inc, Signal Hill, CA, No Date. Photocopy. Paperback. Size 8vo (up to 9-1/2'' tall). Condition: Good. Front cover corners creased, bottom corner torn off. 4 lines of text highlighted in yellow, ink note on back page. 9 Pgs. Illustrated with drawings. Description text copyright 2017 www.BooksForComfort.com. Item ID 32227.