Greetings once more.
Having taken my trusty Gaugemaster panel mounted UF feedback controller out of storage, I discover that for reasons which totally escape me now after 6 years, I changed the wires from the coding printed on the reverse, to my own colours. Can't think why, but probably something to do with length? Anyway, can anyone tell me which pair of wires is the input and which the output? One pair is directly soldered to the DPDT switch, the other pair to what appear to be diodes or similar.
And no, at my age I'm not going DCC instead:)
TIA ZD