Measuring, signaling, control apparatus and instruments, namely, analog and digital signal generating systems for generating a pulsed electrical signal to be transferred to an applicator, such applicators comprised of headsets, speakers, lamps, light emitting diodes and electrodes and electrical conductors included in pads, mats, and sticks; measuring devices to measure physical values from the body of a human or animal patient, namely electrodes for measuring electric currents in the body an...