Marantz ST 521

      
MW/FM stereo tuner.     IC: TC9147AP: FM/LW/MW digital tuning, TD6301AP: display driver, TD6104P: progr.counter,
LA1245: AM tuner, AM RF+IF ampl., HA11225: FM IF, HA11223W: PLL FM stereo demodulator, TL489: 5 step analog level detector.
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