000 00338 a2200133 4500
020 _a074926117X
082 _a621.3815
_bOPE
090 _c2410
_d2902
245 _aBlock 5 audio frequency amplification
260 _aMilton keynes
_bOpen university
_c1990
_g1990
300 _a94p.
_c29cm
650 _aComponents and circuits
942 _cSR
999 _c31479
_d31479