I was there in 1967/8 for about 7 months split between the Training School, next to the Electric Depot, and in the Signal Shop. During that time I went over the Eagle Bridge at least once a day when I was in work.
In The Melts a few locos were being cut up, but one side of it had been given over to semaphore signals. At that time the LMR were still using LMS bolted-through-the-post fittings with every hole drilled and red leaded. We actually spread it as a paste on the onside of the saddles that went onto the post. I remember the whole place being locked up when the loco from Hixon came in. The cab was cut off by contractors behind closed doors at night.
In the Signal Shop I spent a lot of time making up Ground frames for the Saltley/Derby/Trent resignalling, but my best job was to work on the new 35 lever frame for Colwyn Bay. There was also a lot of fettling of old stuff for obsolete equipment, such as a regular job doing levers for the overhead box at Chester. I think there were only a couple of spares in existence so the depot locking fitter would bring two in about once a fortnight and we would recondition them for him to pick up the following week.
On the loco side at that time new deliveries were parked by the Signal Shop during acceptance trials. I saw the last 11 Class 20s and the first 19 Class 50s during that time. The works was doing the Class 74 EDs at the time as well. There were a few relics around at the time like a stationary boiler between us and the paint shop, which was reputed to come from an original Royal Scot, and a pair of bogies from the SR Triplets which were used as transport trollies when bogies were removed to receive attention in the old Tender Shop.