I believe this question has been asked before...but here goes again. Regarding F7 A units: Is it true that originally the F7 when used in passenger service required a B unit to supply (in addition to extra motive power) ...was it steam for heating systems? But later on there was a modification so that just the A unit could be used in commuter and light passenger service? Am I getting this right? And if so, then how might one modify an N gauge F7.. or would that modification even show? Thanks for setting me straight.
On a second, lighter, note...I'm ready to tear down the first far-from-finished N layout. Its been great fun, and an excellent learning experience. (Didn't like the first attempt; time to try again. Wheeeeeee!) Since we will soon move to a much larger house, a much larger RR seems only proper. . AND....the wife wants an under glass coffee table RR in her office besides. Sounds like win-win to me...
Harpo
On a second, lighter, note...I'm ready to tear down the first far-from-finished N layout. Its been great fun, and an excellent learning experience. (Didn't like the first attempt; time to try again. Wheeeeeee!) Since we will soon move to a much larger house, a much larger RR seems only proper. . AND....the wife wants an under glass coffee table RR in her office besides. Sounds like win-win to me...
Harpo