What is LNER electric units?
{{Infobox train | background = | name = LNER Tyneside electric units | image = Electric train at North Shields - geograph.org.uk - 296218.jpg | imagealt = | imagesize = 300px | caption = North Tyneside set at [[North Shields]], 1967 | interiorimage = | interiorimagealt = | interiorcaption = | service = 1937–1967 | manufacturer = [[Metro-Cammell]] | designer = | assembly = | ordernumber = | factory = | family = | replaced = [[NER electric units]] | yearconstruction = | yearservice = | refurbishment = | yearscrapped = | numberconstruction= | numberbuilt = 132 cars (64 sets) | numberservice = | numberpreserved = | numberscrapped = | predecessor = | successor = | formation = 2-car sets | diagram = | code = | fleetnumbers = | capacity = | operator = [[London and North Eastern Railway]]<br>[[British Railways]] | depots = | lines = | carbody = | trainlength = {{convert|112|ft|7|in|m|abbr=on}} | carlength = {{convert|38|ft|m|abbr=on}} | width = | height = | lowfloor = | floorheight = | platformheight = | entrylevelorstep = | doors = | art-sections = | wheeldiameter = {{convert|3|ft|7|in|mm|abbr=on}} | wheelbase = | maxspeed = | weight = | axleload = | steep gradient = | traction = | engine = | enginetype = | cylindercount = | cylindersize = | traction motors = 2x [[Crompton Parkinson]] {{convert|154|hp|kW|abbr=on}} | poweroutput = | tractiveeffort = | transmission = | acceleration = | deceleration = | aux = | powersupply = | hvac = | electricsystem = 600 [[Volt|V]] [[Direct current|DC]] [[third rail]] | collectionmethod = Contact shoe | uicclass = | aarwheel