00989cam a22002651  45000010008000000030008000080050017000160080041000330100017000740350019000910400034001100420012001440500018001560820017001741000034001912450192002252500012004172600037004293000035004664100100005015000020006016500029006216500041006507000032006916947816BD-DhUL20150115101555.0760113s1948    nyua          000 0 eng    a   48010274   a(OCoLC)1924905  aDLCcViUdOCoLCdDLCdBD-DhUL  apremarc00aTK7872.A5bV300a621.384bVAV1 aValley, George E.d1913-eed.10aVacuum tube amplifiers,ced. by George E. Valley Jr. a and Henry Wallman [under the supervision of the] Office of Scientific Research and Development, National Defense Research Committee.  a1st ed.  aNew York :bMcGraw-Hill,cc1948.  axvii, 743 p. :bill. ;c23 cm.20aMassachusetts Institute of Technology.bRadiation Laboratory.tRadiation laboratory series,v18  aIncludes index. 0aAmplifiers, Vacuum-tube. 0aElectronic apparatus and appliances.1 aWallman, Henry.,ejoint ed.