dispensable medical electrodes formed as separable segments of an indefinitely long substrate are formed by applying to the substrate a longitudinally extending stripe of a conductive paint and by overlaying the painted stripe at periodic intervals corresponding to the separable segments with films of a conductive adhesive material which films generally traverse the width of the substrate . after conditioning the conductive adhesive films to a desired moisture content , the substrate is rolled spirally upon itself and stored in an electrode dispenser device . two types of dispenser device are disclosed . in one type , the dispenser confines a humidity control solution which maintains substantially constant the moisture content of the conductive adhesive films . the second type of dispenser device confines an activating solution which is applied to the conductive adhesive films located on the electrode segments as the electrode segments are dispensed .