The Märklin 6143 Transformer, designed for the Swiss market in the 1960s, is a vintage AC power unit with 30W wattage. Made of steel and featuring a 1:87 scale, this analogue-controlled speed controller is a collector's item for model railways enthusiasts. The blue-coloured control unit from Germany also includes a light function and weighs 3kg, making it a ready-to-go option with a UK plug for powering your model train layout. Owned by myself since new and in good condition. The mains power cord outer sleeve is a little worn so has been partially wrapped with electrical tape, otherwise the unit is in good, working order.