An electrically-powered, noninvasive device designed to generate radio-frequency (RF) electrical current used to create heat via a percutaneously (through the skin) introduced electrode(s) in a precise location, at a controlled temperature, for focal ablation of non-cardiac tissues (e.g., non-cardiac nerves, tumours, precancerous tissue); it may be intended for coagulation however it is not intended for electrosurgical cutting. The generator connects via a delivery cable to an electrosurgical ablation probe/catheter (not included) to transmit the RF electrical current to the operative site; it might additionally be intended to heat an electrode tip (electrocautery).