Threshold switches (TS) exhibiting electrically driven phase transition between high resistance (insulating) and low resistance (metallic) states have shown an immense promise for several circuit applications . Ag/HfO2/Pt} based TS, a recent inclusion in this group, was reported to have high selectivity (~107) and unipolar conduction , . The unipolar nature of such a TS may be capitalized to achieve diode-like rectifying behavior with unique advantages. In this work, we discuss the merits of Ag/HfO2/Pt TS over standard diodes and present a Cockcroft-Walton multiplier (CWM) ,  based on Ag/HfO2/Pt. The proposed CWM generates higher DC voltage from an AC input compared to standard CWM, utilizing (a) high selectivity (b) hysteretic behavior (c) abrupt insulator → metal transitions and (d) unipolar conduction of Ag/HfO2/Pt.