RCA 44-BX Frequency Response (1939)

Published at 1200 × 255 in Things I learned on Phono EQ curves, Pt. 2
RCA 44-BX Frequency Response (1939)

source <cite><a href=httpsworldradiohistorycomArchive CatalogsRCARCA 1939 Catalogpdf>RCA Broaccast Equipment Catalog<a><cite> p8 RCA Victor 1939<br>1939年RCA Victorの放送機器カタログに掲載された44 BX の周波数特性グラフ

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