Ross Hill & Hill Graham AC & DC Module Repair

Tested in the UK using purpose-built simulators which allow accurate calibration and testing of all parameters and protection circuits. Internal module modifications undertaken, including the addition of special circuit boards for enhanced functionality.
Replacement Hill Graham Controls Circuit Boards (PCBs)

Other Circuit Boards
P368T | Auxiliary Console PCB | P363T | Voltage Feedback PCB |
P359T | Generator Exciter PCB | P362T | Contactor Auctioneering PCB |
P375T | Drillers Console PCB | P394T | Auxiliary Motor Control PCB |
P396T | SCR Auxiliary PCB | P346T | Motor Speed PCB |
P378T | Monitor PCB | P417T | Rotary Table Regulator PCB |