On 01/06/2016 07:38, "Lionel Johnson" <lionelj at labyrinth.net.au> wrote:
   M7270 11/03
CPU
 M7944 4K RAM (x2)
 M8027 LP11
 There's a fault label on the M8027 saying it occasionally drops characters.
 Question is, anyone know what it was out of?
 Cheers!
  
 When I worked on DEC gear we used a few 4-slot backplanes from VT130
 to use in suitcase portable test units, so could be this. 
 
This was my first thought but the VT103 (I assume you meant this) has a
double-height card cage in it. The VT103 is another of my
should've-picked-up-when-given-the-chance-but-didn't things...
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?