Basically I guess the technology of a metal rod moving back and forth inside a coil has't changed over the years Colin. I used them for years on my old loft layout without any problems but they do need a CDU. My points are now changed handraulically. Might use wire in tube eventually. 😀
There might well be. I use a tool that looks like a key. /media/tinymce_upload/a3806f8324569678ffaf2fa7febffd49.jpg /media/tinymce_upload/aea3cf905c6424fcf7238932aea03a74.jpg
PL-10 is about forty years old. Came with a short operating pin plus an extension pin, the long pin version PL-10E has been around for years. The PL-13 does work with the PL-10 (short pin).
I'd have thought it would take a great deal of weight to break a 3 link coupling unless the links are made from a poor material. Have you tried pulling the chain apart with pliers. Bet it would take a great deal of heaving.
Got as far as I could with OO and had far too much stuff and getting older, easier to see. 😉 Last diesel I bought a small CL05 weighs a Kilo. Nice and chunky.
You need a two cylinder loco so I reckon the J36 TTS decoder will do. Only problem will be the whistle might sound wrong. Different regions had different sounding whistles. Might sound OK though.