GTC is a leading resource for GE Speedtronic and Excitation controls, maintaining one of the world’s largest stock of circuit boards and components. This coupled with energized panels for functional testing and repairs, along with field service and training expertise, allows you to Keep the Control. Brands: GE Speedtronic Mark II, Mark IV, Mark V, Mark VI, Mark VIe, GE Excitation EX2000, EX2100, EX2100e, GE LCI, Power Equipment ...