000 00293nam a22000977a 4500
082 _a621.384 RAD'I
245 _aRADIO VALVE DATA CHARACTERISTICS OF 7000 VALVES TRANSISTORS, SEMICONDUCTOR DIODES AND RECTIFIERS AND CATHODS RAY
260 _aLONDON
_bILIFFE
_c1966
300 _a230P
942 _cBK
999 _c566951
_d566951