I'm excited about this topic for numerous reasons. I shall start out by naming a few. It edifies OGR, which created and maintains this wonderful Forum. It reminds us what a great magazine O Gauge magazine has always been. And, it gives us a chance to share the magazine articles that taught us something useful about our hobby and/or entertained us.
I have an advantage when contributing to this thread because I have been a pack rat when it comes to OGR Magazine. Believe it or not, I have almost all the hard copy issues going back to 1989, and have never thrown any out. (On occasion, I have given a few hard copies to a friend.) If you are not such a pack rat, no problem; you have all of them available to you as a digital subscriber. I'm also a digital subscriber, but like having paper copies in my hands as I read and flip through them in my recliner.
I have two issues to comment on that come to mind immediately. The first is one I read a number of years ago about repairing Lionel Postwar 022 switch tracks. I can't tell you at the moment which issue it is, but I remember it well. This morning I was able to repair two pairs of those switches in which the non-derailing feature was not working. As a result of reading that issue, I was able to do the necessary soldering to get the non-derailing feature working again.
In a few minutes I will share another article in a different issue that I just read, which was my inspiration for starting this thread. Arnold