[GreenKeys] Extra copy to share of ON THE THEORY OF TUBES WITH TWO CONTROL GRIDS -A.W.Wing

[COURYHOUSE at aol.com]

Yes boys and girls.... it has a sections on pentagrid  heptodes
as amplifiers... detectors... and modulators! A wonderful 46  page book 
that was privately printed by the author. Yes, We have an  extra one that 
can 
be shared under proper circumstances. We are putting one on  display next
to OUR Heptode.... How about you? --- Ed Sharpe archivist For  SMECC
_WWW.SMECC.ORG_ (http://www.smecc.org/)  






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ON THE THEORY OF TUBES 
WITH TWO CONTROL GRIDS  
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THEIR  USE AS AMPLIFIERS, MODULATORS, AND DETECTORS 

BY 
ALEXANDER H. WING,  A.B., B.S., E.E. 

DISSERTATION 
SUBMITTED IN PARTIAL FULFILLMENT OF  THE
REQUIREMENTS FOR THE DEGREE OF DOCTOR 
OF PHILOSOPHY IN THE FACULTY OF  PURE 
SCIENCE OF COLUMBIA UNIVERSITY IN THE 
CITY OF NEW YORK 





NEW YORK· 1940 
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