x  x <br/><br/>
Active networks and feedback systems; New York, n.y. April 19,20,21, 1960  x 

 - x 
 - N.Y.  Polytechnic Press  1961 
 - x 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amplifiers, Vacuumtube Amplifiers, Vacuumtube 
<br/><br/><label>Dewey Class. No.: </label>621.381535/FOA