000 00401pam a2200133a 44500
082 _aBTS
_bMONO B-1156
100 _aCarson,John R
245 1 _aFREQUENCY-MODULATION
_bTHEORY OF THE FEEDBACK RECEIVING CIRCUIT
260 _a
_b
_c1939
300 _a9
500 _aBound With Bts Mono B-1140-1155, 1157-1175.Lack No- 1141,1147-1148,1150,1155,1163,1170-1171.
964 _gCIRC
997 _aTR17497 C
999 _c401716
_d401716