Radio valve data :  characteristics of 7,000 valves, Transistors, Semiconductor Diodes and Rectifiers and cathode-ray tubes / 
Iliffe Books. 
 - 8th ed. 
 - London :  Iliffe Books,  c1966. 
 - v,230p. :  ill. ;  28 cm. 
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<br/><br/><br/>english 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio engineering
<br/><br/><label>Dewey Class. No.: </label>621.384/ILR