• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Please help with EAR 549 overhaul

A friend of mine has wonderful EAR 549s which desperately are in need of a complete overhaul. The amps are located in Lyon, France. The owner has basic diy skills but hesitates to do it by himself. Does anybody know who in France (preferabely close to Lyon) can help?