Horn, Delton T. <br/><br/>
Ready-to-build telephone enhancements / 
Delton T. Horn. 
 - 1st ed. 
 - Blue Ridge Summit, PA :  TAB Books,  c1994. 
 - vi, 186 p. :  ill. ;  24 cm. 
<br/><br/> "Remote ringer devices, extension dialing indicator, telephone line tester"--Cover.  Includes index. 
<br/><br/><label>ISBN: </label>0830643591 (paper) :  $16.95 
<br/><br/><label>LCCN: </label>93012883  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone--Equipment and supplies--Design and construction--Amateurs' manuals.<br/>Electronics--Amateurs' manuals.
<br/><br/><label>LC Class. No.: </label>TK9951  / .H78 1994 
<br/><br/><label>Dewey Class. No.: </label>621.386