Sams, Howard W. <br/><br/>
Transistor substitution handbook : 
Howard W. Sams 
 - Slough Bucks England  W. Foulsham & Co. Ltd  1965 
 - 127 p. :  23 cm. 
<br/><br/> http://www.amazon.com/Transistor-Substitution-Handbook-Howard-Sams/dp/B0010KGCSI/ref=sr_1_4?s=books&ie=UTF8&qid=1414734965&sr=1-4&keywords=tRANSISTOR+SUBSTITUTION+HANDBOOK 
<br/><br/><label>Subjects--Topical Terms: </label>--EE, EL
<br/><br/><label>Dewey Class. No.: </label>621.381SAM