Abstract—High-Voltage (HV) labs are crucial for the power and energy sector, as they provide necessary testing for power equipment and devices at voltages significantly higher than their operating levels. The Department of Electrical Engineering at the University of Technology has one of the biggest HV labs in Iraq, and it was well-equipped at some point. Unfortunately, the lab has been out of operation and neglected for decades including the Bamberg kit. No catalog nor a manual existed when the rehabilitation process started. In addition, no internet-based documentation could be found regarding the Bamberg kit due to closing the production line by the manufacturer. Thus, over the recent years, the extensive repair works were carried out and guided by practical experience, detailed analysis, and innovative problem-solving. Remarkably, these efforts were achieved with minimal costs, far below initial departmental estimations. Currently, all the HV generators in the Bamberg kit are back to its normal operation. By the end of the project, most of the kit generator circuits and measurement systems were successfully restored, reaching 80% of a full rehabilitation with less than 1% of the estimated cost. Besides listing and detailing the variety of rehabilitation works that have been done, the paper serves the documentation process of the lab, and this contributes to similar labs that still utilizing Bamberg HV kit.