Uses and maintains hand and power tools, precision measurement tools, and test equipment, such as O-scopes, pulse generators, power supplies, resistance decades, electrostatic field meters, digital/analog multimeters, precision measurement tools and test equipment, gas leak detectors, resistivity meter, electronic control test set, explosive set, circuitry test set, ESD meter, VOM meters, micrometers, torque wrenches, soldering irons, and other trade tools and equipment. Installs, modifies, overhauls, maintains, troubleshoots, repairs, rebuilds, aligns, and calibrates integrated ground or airborne electronics systems such as fire control, ballistic missile control, missile guidance, air traffic control, automatic test equipment, dead reckoning navigation or bombing-navigation systems.