000			004300000a22001450004500
008			160901b1958 xxu||||| |||| 00| 0 eng d
041			_aeng
080			_a621.382 _bD4
942			_cBK
100			_aDefrance, Joseph J.
245			_aElectron tubes and semiconductors
260			_aEnglewood Cliffs _bPrenctice-Hall _c1958
300			_axiii, 288p. : ill., photos.
500			_aAcc. No. 5167 discarded. C. memo no. 328.19 dtd. 2/7/08
999			_c7971 _d7971