Horn, Delton T. <br/><br/>
49 easy electronic projects for the 556 dual timer /  [Book]. 
Delton T. Horn. 
 - 1st ed. 
 - Blue Ridge Summit, Pa. :   TAB Books,   1991 
 - 177 p. :   ill. ;   25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0830634541 0830674543 
<br/><br/><label>LCCN: </label>90022549 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multivibrators--Amateurs' manuals.