. "Roentgen" induction coils and other X-ray apparatus . (No. 3). Diameter of Glass Bulb 5 inches $ B3216. (No. 4). ii a 5^ ** B3217. (No. 5). * *i «« it 5 »« 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 B3219. (TypeC). - ** 5^/^ * B3220. (Type D). ii a .* 5 B3221. (Type F). * ♦ 6^ B3222. (TypeQ). ♦ ». .» TM Ventril or Valve Tube. These tubes are used in series with

---

. "Roentgen" induction coils and other X-ray apparatus . (No. 3). Diameter of Glass Bulb 5 inches $ B3216. (No. 4). ii a 5^ ** B3217. (No. 5). * *i «« it 5 »« 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 B3219. (TypeC). - ** 5^/^ * B3220. (Type D). ii a .* 5 B3221. (Type F). * ♦ 6^ B3222. (TypeQ). ♦ ». .» TM 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-.

---

Size: 2706px × 923px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidroentgenindu, bookyear1903