I am in the market for some PRR signals, but with the exchange rate, these are close to $40 each. You can specify whether positive/negative is common.
I was about to complain that the "new & improved Atlas All Scales Signal System" that was announced last week, could have had an N scale PRR signal, (they show one in O scale) but they'd probably have an MSRP significantly more than the Type G. I might have to swallow hard and order a couple from CR Signals. Problem with signals is that I never have the money to buy "all I'll ever need", but by the time I am ready for more, the seller has sold out.
Bill Kepner