Tube Substitution Handbook

New York: Howard W. Sams & Co., 1973. 16th edition, first printing. Blue octavo, 2-stapled binding, 96 pages Very mild rubbing to spine foot and head, very gentle fraying to spine head, extremely gentle rubbing to corners, price sticker to front cover, light soiling to covers and fore-edges, pale fading to front cover and spine, else Very Good(+) to Near Fine(-). Paperback.

Vacuum-tubes,Television picture tubes, Technology, Engineering.