SILICON CONTROLLED RECTIFIERS ; ISBN 0-672-20526-2 ; 125 PAGES ; ALLAN LYTEL SILICON CONTROLLED RECTIFIERS Published by Howard W. Sams & Company. Stated, First Edition, Fifth Printing, 1972. ISBN 0-672-20526-2 Soft Cover. 125 pages. Illustrated Author: Allan Lytel. The book is in good condition. Cover wear consists primarily of a little edge wear , a crease line across the upper corner of the rear cover, and normal shelf rubbing. Text pages are secure in the binding. Text pages are clean and unmarked. Smoke-free. SILICON CONTROLLED RECTIFIERS