000 00359nam a2200157Ia 4500
100 _aWitts/Alferd T
650 _aElectrical Engineering
942 _cRB
654 _aHeterodyne Receiver
245 _aSuper Heterodyne Receiver
260 _bSir Isaac Pitman
_aLondon
_c1936
082 _a621.3
_bWit
300 _a155
546 _aENGLISH
999 _c30671
_d30671