A positioning cartridge is disclosed for use during manufacture of an electrode. The positioning cartridge may have a plurality of positioning inserts, each with proximal and distal ends, and a scaffold secured to the proximal ends of each positioning insert. The scaffold may be configured to place the positioning inserts in a defined orientation with respect to each other that corresponds to a plurality of longitudinal bores of the electrode. An electrode may be manufactured using the positioning cartridge. The positioning cartridge may have a plurality of components, such that at least one component is associated with each positioning insert. The plurality of components may be temperature sensors. The positioning cartridge may be configured to position each temperature sensor at a location adjacent an outer surface of the electrode.