Rider, John F. <br/><br/>
Vacuum tube voltmeters 
John F. Rider                                                
 - New York  John F Rider Publishers  1941 
 - xi,179p. 
<br/><br/> Donated by Mrs. Bappu 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Vacuum Tubes<br/>Voltmeters
<br/><br/><label>Universal Decimal Class. No.: </label>531.78  / RID