Basic electricity &electronic:alternating current :   transformers-english    

 - Crowborough :  Audio Visual Source,       
 - Videocassette;   19cm.    
 - Basic electronic:alternating current, series8    .
<br/><br/> VHS/NTSC    
<br/><br/><label>ISBN: </label>2004000042    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery--alternating current   <br/>Electric transformers