000 00454nam a22001697a 4500
005 20220519104922.0
008 100305t xxu||||| |||| 00| 0 eng d
082 _a621.3841 32
_bBAL
245 _aRadio valve and semiconductor data
_cCompiled by S.M. Ball
250 _a10th ed.
300 _avii,179p.
653 _aRadio
700 _aBall, A.M., comp.
_95589
942 _cBK
260 _aLondon
_bNewnes Technical Books
_c1975
020 _a0408001895
999 _c266281
_d266281