000 00311pam a2200133a 44500
082 _a537.53
_bH26
100 _aHarvey, Arthur Frank
245 1 _aHIGH FREQUENCY THERMIONIC TUBES
260 _aLondon
_bChapman & Hall
_c1946
300 _a235
650 _aVacuum-Tubes
964 _gCIRC
997 _a2264 C
999 _c430495
_d430495