Berlin, Howard M. <br/><br/>
555 Timer Applications Sourcebook with Experiments: Techniques, applications, and experiments using the 555IC timer 
By Howard M. Berlin 
 - Philippines  E & L Instruments, Inc.  1976 
 - 158 pages, 22 cm. 
<br/><br/> Includes appendix, bibliographic references, and index 
<br/><br/><label>ISBN: </label>971-8636-01-3 
<br/><br/><label>Dewey Class. No.: </label>681.1 B45 c1