[King Edward 1st]

i brough one of ebay and i thought it was like the gaugemaster shuttle unit for use at stations and things but i have come to believe it is not. does anyone know what it is for and i don't think i need it. does anyone want to buy it?

thanks

 

[Dinwiddy]

Hi - i think it just deals with automatic reversal of current on a reverse loop, otherwise as all parts of a DCC layout are 'live' it would short out.
David Y