... . .9k= Ian Last edited on 29 Aug 2018 13:29 by Ian Allen posted: 29 Aug 2018 13:56 from: Martin Wynne madscientist wrote: was this the case in the prototype? Hi Dave, The usual arrangement with a double-slip when rodded to a signal box is that both sets of points at one end of the slip are linked together, and also linked to the turnout at the opposite end, so that all 3 sets of points work together on a single lever, like this: 2_290837_090000000.png Pulling lever A reverses all 3 points marked A, setting the lower slip road for use. Pulling lever B reverses all 3 points marked B, setting the upper slip road for use. Pulling both levers A and B sets the diagonal road across the slip. With both levers normal, all the straight main roads are set. On a model, lever A can also be used to change the polarity of the V-crossing vA, and lever B can be used to change the polarity of the V-crossing ...