Dave, I use Caboose Industries No. 220S ground throws. It's listed as N & HO scales, but it works just fine in S and it has electrical contacts so that you can run power to the frog.
The one ft. distance for computing the frog number is measured gage to gage. Bob Frascella Wenham, MA On Nov 11, 2012, at 10:39 PM, David Engle wrote: > > Is anyone using their switch machines, especially the ground-throws. Which > models are yours, how do they perform? > > The number of the frog of a switch is the distance from the point to where > the rails diverge one foot. Does this include the distance across both > railheads, one railhead, or neither railhead? > > Dave Engle > >
