Technics ST-S11 (c. 1981)
Not much is documented about the Technics ST-S11 beyond its Japanese-market specifications. It appears to have been a straightforward analog FM/AM tuner from around 1981, priced at ¥22,800. It has no preset buttons and no quartz synthesis. The front panel is clean, built around a long 220 mm scale dial and a tuning meter. It would have anchored a modest separates system of the period.
The FM section was respectably specified. Sensitivity is 10.3 dBf (0.9 μV, IHF '58), THD is 0.15% mono / 0.25% stereo, signal-to-noise is 78 dB mono / 74 dB stereo, effective selectivity is 60 dB, and stereo separation is 40 dB at 1 kHz. It ran on 100 VAC at 10 W, which fits a domestic Japanese-market unit. It measured 430 × 120 × 221 mm and weighed just 2.7 kg. AM section specs, production years, and any review commentary are not documented in the source record.
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