is protected by a screw-on case. mounting "V24" and "Qx" valves. Catalogue No. 31 This Murdock Variable Condenser is contained in a heavy composition case which may be filled with oil, if desired. "Amrad " Detector Catalogue No. 50 The "Amrad" Detector shown at the Crystal Detector top of this… … "Amrad" Variometer Audio-frequency Transformer Ampliformer Catalogue No. 240 Catalogue No. 186 Catalogue No. 7 This Basket- wound Variometer is fully A well-designed Inter-valve Trans- Bulle- former, developed in the Canadian Mar- Fully described in "Amrad' described in "Amrad " Bulletin "O," coni…
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Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
