© 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,
Image
趙得漁君之長女(家壁)三子(賢才)肖像 The portrait of the oldest daughter (Jiabi) and the third son (Xiancai) of Mr. Zhao
Keywords: portrait,
趙家壁 Zhao Jiabi (depicted on image), 趙得漁 Zhao Deyu (mentioned in caption), 趙賢才 Zhao Xiancai (depicted on image),