000 00560nam a2200205Ia 4500
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020 _c94
040 _aMAIN
041 _aEnglish
082 _a621.38151
_bCHA
100 _aChampeix, R. and Boutry, G. A.
245 0 _aPhysics and techniques of electron tubes
_b: principles of vacuum technique
260 _aOxford
_b; Pergamon Press
_c, 1961
300 _axii,221p.
_b, V.1
650 _aElectron Tubes
650 _aElectronics
650 _aEngineering
942 _cBK
999 _c110883
_d110883