© Courtesy of the Institute of Chinese Studies, Library, Heidelberg University.
Article
單座真空管收音機的構造法, Instructions on making single vacuum tube radios
農隱 Nong Yin (Author), 陳作絮 Chen Zuoxu (Author),
Keywords: radiocommunication, radio,
© Courtesy of the Institute of Chinese Studies, Library, Heidelberg University.
Article
單座真空管收音機的構造法, Instructions on making single vacuum tube radios
農隱 Nong Yin (Author), 陳作絮 Chen Zuoxu (Author),
Keywords: radiocommunication, radio,