The Meccano Type A2 Power Control Unit is a vintage analogue speed controller made of pressed steel, designed for model railways in 1:76 scale. This pre-built unit by Meccano comes in a classic grey colour and is compatible with OO gauge model trains. Perfect for hobbyists looking to add power and control to their model railway setup, this controller embodies the nostalgia and craftsmanship of traditional model railway enthusiasts.