I have an old Bullard VTL retrofitted with a Siemens 802C controller. Siemens says my ECU is going out, but due to how old it is, it is becoming difficult to find. I am wondering if anybody has or knows where to find parts for these. I have found some on ebay but I am looking for a much better price for most likely a used one. The part number is 1P 6FC5510-0BA11-0AA0 if that helps anyone.