Panasonic RS-279US (c. 1973–1974)
The RS-279US is a three-head cassette deck from the early 1970s, sold under Panasonic's "Technics by Panasonic" umbrella. The archive's record on it is thin - no manual, no service literature, no independent test report. What survives is mostly the company's own advertising, plus a listing in Audio's September 1973 equipment directory (p.66). There the RS-279US appears under "Cassette & Cartridge Recorders" as the Technics by Panasonic, next to the Tandberg TCD 300.
Panasonic's ad campaign for the deck ran from late 1973 into 1974 in titles like High Fidelity (November 1973, p.157). The pitch was direct: other makers talked about three-head cassette decks, and Panasonic had built one. The RS-279US used an HPF monitor head, so the user could hear the recording straight off the tape while it was being made. The ads sold this as recording insurance that specs alone couldn't guarantee. The advertised figures were a signal-to-noise ratio better than 59 dB, wow and flutter under 0.10%, and frequency response from 20 Hz to 16 kHz (one printing of the ad lists 10 kHz). Those are manufacturer claims, not bench measurements from an independent lab.
Original price, production run, circuit details and actual measured performance are all undocumented. The deck is a modest one from a major maker, and a manual or review would be a welcome contribution.
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