Two items that turned up in an ebay buy I just made.
For some reason I can't download my photos
but this is what they look like.
The first is an 11" x 7" x 5" deep 'Control Transmitter' with a sticker hand-written '10L 5895-99 9465125'. Loads of switches and other controls with two small meters near the top marked Z.A. 53005. It has the MoD arrow and indications that it's for LF/HF. Got no maker's name but I just opened it up and it is packed with wiring, mostly pink. On the back there are four connectors - 37-pin 'PL4A', 37-pin 'PL4B', three-pin 'PL4D' and 10-socket SKT4C.
The other one is a Sundstrand 'Controller MEPU' Part number 710051B, serial number 188 and made 2 Q 73. This is 20cm tall, 6cm wide and 32cm deep. It has a round multi-pin connector on the front and at the other end there's another multi-pin connector but this is like a squared 'D' shape facing downwards.
Any thoughts anyone has would be greatly appreciated.