Penfold, R. A. <br/><br/>
Popular electronic circuits /  [Book]. 
by R.A. Penfold. Bk.2. 
 - Shepherds Bush road, London :   Bernard Babani Pub. Ltd.,   1982 
 - 146p. :   ill. ;   18cm. 
 - BP ;  98 .
<br/><br/><label>ISBN: </label>0859340732 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic circuits.