X-rays simply explained : a handbook on the theory and practice of radiography (1903)
Howgrave-Graham, Robert Pickersgill, 1880- · London : Percival Marshall & Co · leaf 78
be and source of supply are veryoften useful in Wimshurst work, even with large 74 ACCESSORIES. 75 machines. Occasionally improved effects are ob-tained with induction coils by the Insertion of aspark gap, bul only for certain purposes. The ar>paratus, fig. ■, is very dimple, cheap, and easily… … Fig. 9.—Spark-gap apparatus fur use with a Wimshnrst machine. the ebonite to fit, and firmly fastening either withglue or by screwing from beneath. The top of each pillar is drilled and tapped J in.,and into it is driven a \ in. screw of the kindwhich has a cylindrical head. To avoid brush…
X-rays · Cathode rays · Fluorescence
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