000 00690cam a22002651 4500
001 6032601
003 OSt
005 20200302161501.0
008 870109s1952 enka 000 0 eng
010 _a 52003388
015 _aGB52-5628
035 _a(OCoLC)15051931
040 _aDLC
_cCLU
_dUk
_dDLC
042 _apremarc
050 0 0 _aQC544.V3
_bW5 1952
100 1 _aWilliams, Emrys.
245 0 0 _aThermionic valve circuits.
250 _a3d ed.
260 _aLondon. :
_bPitman ,
_cc1952.
300 _axi, 314 p. :
_bdiagrs. ;
_c23 cm.
500 _aIncludes Index.
650 0 _aVacuum-tube circuits.
906 _a7
_bcbc
_coclcrpl
_du
_encip
_f19
_gy-gencatlg
942 _2lcc
_cBK
999 _c679
_d679