"Roentgen" induction coils and other X-ray apparatus (1903) (14754018531)

Identifier: roentgeninductio1903jame (find matches)
Title: "Roentgen" induction coils and other X-ray apparatus
Year: 1903 (1900s)
Authors: James G. Biddle Company
Subjects: X-rays Induction coils 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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(No. 3). Diameter of Glass Bulb 5 inches $12.50 B3216. (No. 4). ii a 5^ ** 15.00 B3217. (No. 5). * *i «« it 5 »« 16.00 Gundelach Heavy Anode Tube. For skiagraph-ic purposes theGundelach heavy anode tube is re- , ^^. ^^^—^.. ^ »^^^ ^ y- -——■—- ^ cognized as be- ^^^ ■ ing very effect-ive. FiGURK 23. B3218. (Type B). Diameter of Glass Bulb 4^ inches 20.00 B3219. (TypeC). - ** 5^/^ * 22.50 B3220. (Type D). ii a .* 5 25.00 B3221. (Type F). * ♦ 6^ 30.00 B3222. (TypeQ). ♦ ». .» TM 45.oo Ventril or Valve Tube. These tubes are used in series with the X-Ray tube and the in-duction coil to prevent the inverse discharge from passing throughthe X-Ray tube. They take the place of the series spark gap andhave over it the advantage of absence of noise and constant resistance with both lightand heavy cur- rents. When the _ _)^sgff^)i;l;-. .(^^^^^^■B^M^ electrolytic inter- +^^.^^i_^._,_._—:^=^^M\ ml rupter is used they are of espe- c i a 1 advantage Figure 24. and wc reconi-
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