Art
J-GLOBAL ID:201602008068490284   Reference number:58A0061403

Audio Filter Has Variable Bandpass.

可聴周波用可変帯域フィルタ
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Material:
Volume: 29  Issue:Page: 48-49  Publication year: 1958 
JST Material Number: D0488A  ISSN: 0033-7862  CODEN: RAECA   Document type: Article
Country of issue: United States (USA) 
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