000 00461cam a2200193L r4500
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020 _chb
041 _aeng
100 1 _a(Eastman, Austin V.)
245 1 0 _aFundamentals of vacuum tubes /
_cAustin V. Eastman
250 _a2nd ed.
260 _aNew York :
_bMcGraw-Hill,
_c1941
300 _a583p.
504 _aIncludes index
999 _c54989
_d54989