Tag Archives: dayfan

Newest Old Radio: a 1920s Battery Set, the Dayfan OEM-7

Posted on May 27, 2011 by jwk

A new addition to my collection arrived today. I’ve been reading the Elements of Radio to learn radio theory the way it was taught in the 1930s and 1940s, and many of the reference circuits in the book are the … Continue reading →

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