Penfold, R. A. <br/><br/>
Beginner's guide to building electronic projects / 
by R.A. Penfold. 
 - London :  Bernards,  1977 
 - Bernards & Babani Press radio and electronics books ;  no. 227 .
<br/><br/><label>ISBN: </label>0900162686 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic apparatus and appliances--Unit construction--Handbooks, manuals, etc<br/>Electronic circuits--Handbooks, manuals, etc