ScotRail operations 1980s-privitisation

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I have been reading this thread with interest and the issue of the type of multiplexing system fitted to the 47/7s and DBSOs got me trying to dig out  my copy of two wire control system training notes from the training course at Derby, unfortunately I had not been able to find them. 

Thanks for uploading them.  Nice to read through them again. I did however find a couple of photos of 47704's two wire control system chassis, modules, control relays and control air system.