James G. Biddle Company · Philadelphia : James G. Biddle · leaf 4
entgen Outfits A and B can be operated from commer-cial electric light circuits of about no volts, either direct or alternat-ing. The anode in an electrolytic interrupter is consumed much morerapidly by alternating current action, so that whenever possible werecommend that a direct current circuit… … JAMES G. BIDDLE, General Selling Agent, 1114 CHESTNUT STREET, PHILADELPHIA, U.S.A. ANNOUNCEMENT. The Roentgen Manufacturing Co. has developed a line of quickworking X-Ray apparatus which, in the hands of an expert, is capa-ble of exceptionally rapid, as well as satisfactory, radiographic results.…
X-rays · Induction coils · Radiography
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