File:Typical "Roentgen" equipments (1905) (14571414038).jpg

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Identifier: typicalroentgene00jame (find matches)
Title: Typical "Roentgen" equipments ..
Year: 1905 (1900s)
Authors: James G. Biddle Company
Subjects: X-rays Radiography
Publisher: Philadelphia : James G. Biddle
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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adiographs were made with the Roentgen Ammeter reading between15 and 20 mil-amperes. Feb.10,1905. The coil is most satisfactory—far ahead of any one that I have everseen. The spark length can be regulated to a millimeter—anything fromhalf an inch to 12 inches. This is especially convenient in experimentalwork. April 3, 1905. The 18-inch coil which I bought from you January, 1904, has been inuse on an average of five hours each day, and has given perfect satis-faction. Dr. Frank E. Peckham, Providence, R. I. Roentgen Jumbo Coil with self-starting mechanical and electrolyticinterrupters ; operated from 250 v. direct current. Dr. Russell H. Boggs, Pittsburgh, Pa. Roentgen Jumbo Coil without interrupters; used with mercuryand electrolytic interrupters on no v. direct current Dr. Preston M. Hickey, Detroit, Midi. Roentgen Jumbo Coil without interrupters ; used with electrolyticinterrupter on 220 v. direct current. 4 James G. Biddle, 1114 Chestnut Street, Philadelphia. Style A Mounting.
Text Appearing After Image:
Roentgen Coil, with primary of variable inductance, self-starting mechanicalinterrupter, and adjustable mica condenser for same, mounted on plain table>with no volt rheostat beneath. The rheostat handle projects through top oftable and moves over a graduated scale. Woodwork, oak or mahogany. James Q. Biddle, 1114 Chestnut Street, Philadelphia. University of Penna. Hospital, Philadelphia. 24 Roentgen Coil with self-starting mechanical and electrolytic inter-rupters ; operated from no v. direct current. Medico Chirurgical Hospital, Philadelphia. 20 Roentgen Coil with self-starting mechanical and electrolytic inter-rupters ; operated from no v. direct current. German Hospital, Philadelphia. 20 Roentgen Coil with self-starting mechanical and electrolytic inter-rupters ; operated from no v. direct current. University of Penna. (Physical Laboratory) . . Philadelphia. 20 Roentgen Coil with self-starting mechanical and electrolytic inter-rupters ; operated from 110 v. direct current. Apriltypicalroentgene00jame

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  • bookid:typicalroentgene00jame
  • bookyear:1905
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:James_G__Biddle_Company
  • booksubject:X_rays
  • booksubject:Radiography
  • bookpublisher:Philadelphia___James_G__Biddle
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:7
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
Flickr posted date
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27 July 2014

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