000 00271 a2200121 4500
082 _a621.38151
_bR118rm
245 1 _aRCA MAGNETRONS AND TRAVELING-WAVE TUBES
260 _aN. J.
_b
_c1956
300 _a39
650 _aMagnetrons
964 _gCIRC
997 _a16752 s C
999 _c452940
_d452940