000 00244nam a2200085 4500
080 _a621.382.3
_b+ 621.3.032.1 ARG.56
245 _aVacuum-tube circuits and transistors
100 _aArguimbau, Lawrence Baker
260 _aN.Y.
_bJohn Wiley & Sons Inc.
_c1956
300 _aix+646p
999 _c24135
_d24135