000 003050000a22001330004500
008 140223b1948 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aD65 H7.16
082 _aD65 H7.16
100 _aPound (R V)
245 _aMicrowave mixers
260 _c1948
650 _aElectron Engineering
999 _c155067
_d155067