I'm a little late with this update, but last month Richard Schauer sent me a photo of yet another TTC that has made it to a museum. Car 4133, shown above, is currently stored at the Halton County Radial Railway but - like car 4068 - it is owned by the Seashore Trolley Museum. Unlike car 4068, though, this one isn't slated for long-term preservation. Instead the plan is to scrap it for parts, chiefly its trucks, which will be regauged to standard gauge and placed underneath car 4068. That's the plan but until that happens the car is still owned by a museum so it's on the PNAERC list for now.
Thanks also go to Al Weber with the National Museum of Transportation, who sent along several helpful pieces of mechanical information about cars in their collection. Tidbits like the type of controller on work car 165, air compressors on SLPS 1005 and IT 1575, and the brake schedule on the bi-polar are now part of the roster. Information like this is always greatly appreciated. I'm always looking to add any missing information, especially technical information on mechanical and electrical equipment. If you notice that cars at your museum have blank spaces in their listings, YOU can help! Just email me any information you are able to find.