| 摘要 |
Through the tuning apparatus used for radio receiver to receive multiple broadcasting bonds such as AM, FM broadcasting etc, the first and the second broadcasting receiver apparatus can be tuned at each broadcasting frequency band. The notch mark(16) on scale plate represents the specified frequency band. The proper broadcasting frequency can beselect ed by presetting the presettable means(17a), (17b), (18a), (18)b without changing frequency bands.
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