"Roentgen" induction coils and other X-ray apparatus (1904)
James G. Biddle Company · Philadelphia : James G. Biddle · leaf 46
Figure 30. B3229. Ventril Tube, $ 7.50 WHEN placed in series with an X-Ray tube the ventril tubehelps to cut out universe discharge. For this purposeit is most valuable, and is used by many expert operators. James G. Biddle, 1114 Chestnut Street, Philadelphia. 41 Tube Rack. … Roentgen RacK for X-Ray Tubes. A RACK as above illustrated is very convenient for holding tubeswhen not in use. To be hung against a wall. Prices. B3230. Roentgen Tube Rack, Capacity 2 Tubes, $ 2.00 B3231. 4 4.00 B3232. •« •■ 6 6.00 B3233. •« 8 •• 8.00 B3234. 10 10.00 42 James Q. Biddle, 1114…
X-rays · Induction coils · Radiography
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