Williams, Emrys <br/><br/>
Thermonic value circuits 
Emrys Williams 
 - London  Sir Isaac Pitman and Sons  1952 
 - xi, 314p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics<br/>NASA Thesaurus<br/>Valves
<br/><br/><label>Universal Decimal Class. No.: </label>621.3.049  / WIL