Whitaker, Jerry C. <br/><br/>
The TAB guide to vacuum tube audio :  understanding and building tube amps / 
 Vacuum tube audio 
Jerry C. Whitaker 
 - New York :  McGraw-Hill,  2012 
 - xxi, 344 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780071753210 (pbk.) 0071753214 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amplifiers, Vacuum-tube