HENEX is a High ENErgy X-ray electronic spectrometer for use at high-energy laser facilities such as the University of Rochester Lab for Laser Energetics (URLLE) and the Lawrence Livermore National Laboratory’s National Ignition Facility (LLNL NIF). Tiger Innovations contracted with the Naval Research Laboratory (NRL) to provide custom control electronics for this instrument. This effort included design, manufacture, test, and installation of the instrument electronics, and the support electronics required to interface with the existing facility data acquisition and control system, as well as continuing operational support for the system.