Harman Kardon hk715 (1982)
A digital synthesized quartz-locked AM/FM tuner made in Japan,
Overview
The Harman Kardon hk715 is a stereo AM/FM digital tuner built in Japan in 1982. It uses digital synthesis with quartz-locked tuning, which gave better frequency stability and tuning precision than analog systems. It covers FM and medium wave (MW) and is meant to sit in a high-fidelity audio system. The documentation has no detailed performance figures and nothing on connectivity. The hk715 was sold under several descriptive names, including "Digital Synthesized Quartz-Locked Tuner" and "Mono/Stereo Tuner," which points to flexible audio output.
Specifications
| Type | Mono/Stereo Tuner |
| Tuning Bands | FM, MW |
| Production Year | 1982 |
| Country of Origin | Japan |
Design
The hk715 locks its tuning frequency to a quartz crystal reference. That keeps reception accurate and stable.
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