Ed, Thank you so much for the reply. It's great that you are rescuing the old layout and incorporating in a (HUGE!) new one. Wish I had that kind of space. My old layout is long gone Thanks also

Don, Thanks, you're very kind about the drawing. All your recommendations make good sense, and isolating at max train length in either direction from crossover B should work well, as I'm not

I’m having trouble wiring a PTB100 with a 4PDT turnout. I know th Black prgoes to the power supply of the command station of its own 15V500Am source but do the Orange and yellow pr go between the

Hello John: If HO layouts are built on 4x8 sheets of plywood, why can't you cut the plywood into eight 2x2 modules? I know it might not match any module

When we first started our module club we used 2x2 corners for ease oftransport we later went to larger corners with bigger radius curves but 2x2 willwork Terry

Most of the times I have seen a reference to a 4pdt switch, it is being used to create a isolated section of track between the layout and the programming track to prevent locomotives from being

Rick, You said “As for isolating the section under the overpass: I was under the impression that a DCC engine operating in a district that experiences a polarity reversal will continue to follow

I built a 5 x 9 foot table for my son this past Christmas. Since I knew that he would need to move it from time to time, I built 4 each modules that could be clamped together to make the 5 x 9 table,

To all: We all know that if you have a reverse loop, it has to be longer then the length of a train with lighted cars. I have a situation where a yard is part of a wye. This yard will have lighted

That is a perfectly good plan Ed. There is nothing wrong with having the entire yard part of an auto-reversing section. When is a high current condition sensed by the AR/CB, it will first try to

Don, Thanks for the confirmation. The wye is the only two points out of the yard district and the yard ends. I put it in so I could turn engines around. I needed a circuit breaker for the yard and

Carl, A corner has to be a quarter the circumference of the circle (circle of track divided in half). Using the inside corner of your 2x2, the largest radius can only be around 20 inches and then

<<We all know that if you have a reverse loop, it has to be longer then the length of a train with lighted cars.>> <<I have a situation where a yard is part of a wye. This yard will have lighted

Steve, Thanks for your reply. I understand how a conventional wye would work, but I am far from conventional. Look in the photo section, if you list the albums by latest first my album should come

The use of a switch for the programming track is to allow you to alternately run Full DCC power OR Programming power/signals from the PTB100 on the same piece of track. One can simply use a DPDT

Don and others, thanks for responses. What I'm trying to do is get the PTB 100 wired with the 4PDT switch so when I throw the switch to place my programming track into programing mode from layout

Carl Another option to consider: see the pictures I posted of the tilted table construction, I am in the process of building to save space The table fits thru a 36 wide door folded. its 5 x 8 but

Hello John: Let's try again. This 24" x24" module is for home use. Putting the outside track 2" from the edge would give you a 22" radius. The second track less 2.5" would be 19.5" radius, still

Carl, I find it amazing how the O gauges can make those tight radii, I have a little narrow gauge G layout and it is the same. My mind set is on HO and big HO engines are not happy on small radius

Hi Chuck: I do like your tip up layout. Wiring with it up should be nice. And I like the storage too. For now I have a "finished" layout. Thanks, Carl. Sent from my NOOK Chuck Stiles <capnchuck@...>