Sherwood SEL-300
The Sherwood SEL-300 is a digital readout tuner from the early 1970s, when digital frequency displays were still a novelty in consumer audio. Little is documented about it beyond period magazine reviews. No production years, original price or detailed specs appear in the usual service literature.
The audio press took the SEL-300 seriously. Audio (November 1971, p.26) measured its stereo separation at 40 dB at mid-frequencies and noted it met or exceeded FCC transmitter requirements. High Fidelity (April 1972, p.39) published CBS Labs results showing a capture ratio of 2.3 dB and a signal-to-noise ratio of 74 dB. That same review called the SEL-300 “one of the finest tuners we have ever tested,” and praised its tuning system as faster and simpler than punched-card tuning. Earlier, High Fidelity (February 1972, p.37) had already flagged the SEL-300 as an important new product, and Audio (March 1972, p.31) similarly highlighted the design.
What little is known of its performance:
- Digital readout tuner
- Stereo separation: 40 dB at mid-frequencies (meeting FCC requirements)
- Capture ratio: 2.3 dB
- Signal-to-noise ratio: 74 dB
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