United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 47
ase shouldbe kept free from oil and dirt. For protection againstsurges or sudden high tension pulses which are likely todamage the transformer, a resistance should be placedin shunt with the low tension terminals. If this isnot provided by the maker, ordinary lamps may beused. Fig. 13. The middle… … Fig. 13. Protection from surge by use of a lamp. Transformer
