. Price list of wireless apparatus supplies and literature. . Murdock Condenser Catalogue No. 31 This Murdock Variable Condenser iscontained in a heavy composition casewhich may be filled with oil, if desired. Amrad Detector Catalogue No. 49 The Amrad Detector here illus-trated is a remarkable example of com-pactness and efficiency. The crystalcup is protected by a screw-on Marconi Valve Mount Catalogue No. 229 Employing the Marconi method ofmounting V24 and Qx valves.

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