An electric motor which has a separate end cap heat exchanger, through which a liquid coolant is passed, is disclosed. The bleed valve has an inlet leading from the compressor and a passageway leading from the inlet. This starting time may be set initially to the end of a prior access probe plus a pseudo-random wait duration and may be advanced forward or moved backward in time, if needed, by a time duration selected such that the protected time interval does not overlap the tune-away interval. The arrangement is such that to effect electrical connection between any of the one or more electrical contacts with respective one or more electrical inputoutput devices, respective contacts and inputoutput devices are mutually engaged so as to load the elasto-resistive material under compression.