Popular valve / transistor substitution guide /  

 - 256 ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Transistors.<br/>Electron tubes.<br/>Electronic circuits.
<br/><br/><label>Dewey Class. No.: </label>621.381530422  / P831