Induku ehlanzekile ye-tungsten/ibha ye-tungsten ngokuvamile isetshenziselwa ukwakha i-cathode ekhiphayo, i-lever yokusetha izinga lokushisa eliphezulu, ukusekela, ukuhola, inaliti yokuphrinta nazo zonke izinhlobo zama-electrode kanye nesifudumezi somlilo we-quartz.