Kalmar "Cockcroft and Walton Voltage Multiplikator" tana nufin na'urar da ake amfani da ita don samar da babban ƙarfin lantarki daga ƙananan ƙarfin shigarwa. John Cockcroft da Ernest Walton ne suka ƙirƙira shi a cikin 1932, kuma yana dogara ne akan ɗimbin matakan ƙarfin lantarki ninki biyu, wanda kowannensu ya ninka ƙarfin matakin da ya gabata. Sakamakon wutar lantarki shine samfurin ƙarfin shigar da kuma adadin matakan. Lokacin da aka sanya madaidaicin ƙarfin lantarki akan shigarwar, kowane mataki na mai ninka yana cajin capacitor zuwa sau biyu na ƙarfin matakin da ya gabata. Diodes suna hana capacitors yin caji ta wata hanya dabam, kuma ana ɗaukar ƙarfin fitarwa daga matakin ƙarshe na tsani. kamar yadda ya ba da izini don samar da manyan ƙarfin lantarki masu mahimmanci don haɓaka ƙwayoyin da aka caji. Har yanzu ana amfani da shi a wasu aikace-aikace masu ƙarfi a yau.