A lithotripter probe system including an invasive lithotripter tip and an electrical source for the lithotripter tip are disclosed. The lithotripter tip includes a first and second electrode positioned on the lithotripter tip such that an electric arc between the ends of the first and second electrodes causes a shockwave to radiate from the lithotripter tip. The electric source includes a first spark gap, a second park gap electrically connected in series with the first spark gap, and a storage capacitor electrically connected in parallel with the first and second spark gaps. The first electrode is electrically connected to the storage capacitor via the serially connected first and second spark gaps, and when the first and second spark gaps conduct, the storage capacitor is configured to discharge to the first electrode, thereby causing the electric arc between the ends of the first and second electrodes.