Christie, Arthur Carlisle, 1879- · Philadelphia ; London : Lippincott · leaf 55
only wax as insulation. Theterminals of the secondary coil must also be insulatedor separated to a considerable distance from eachother, to prevent sparking across. . 42 A MANUAL OF X-RAY TECHNIC Methods of Rectifying the Current.—Just asthe current passing through the primary of the trans-former… … Fig. 17.—Diagram of connections of interrupterless apparatus. unidirectional by some means. Ventril or valve tubes,previously described, have been used for this purpose,but most high-tension transformers are now providedwith some form of mechanical rectifying switches. Fig. 17 represents…
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