000 00325 a2200133 4500
082 _a621.38153
_bR118r
245 1 _aRCA PHOTOTUBES AND PHOTOCELLS
260 _aLancaster, Pa.
_b
_c1963
300 _a192,Y
440 _aIts Technical Manual
_vPt. 60
650 _aPhotoelectric Cells
964 _gCIRC
997 _aA442 s C
999 _c456846
_d456846