Found these TVs here in the Netherlands Europe. All are 525 lines 60Hz, in the Netherlands 625 lines 50Hz. Nice additions for me.

http://www.marcelstvmuseum.com/USA%20TV/01.jpg
http://www.marcelstvmuseum.com/USA%20TV/02.jpg
http://www.marcelstvmuseum.com/USA%20TV/03.jpg
http://www.marcelstvmuseum.com/USA%20TV/04.jpg
http://www.marcelstvmuseum.com/USA%20TV/05.jpg
http://www.marcelstvmuseum.com/USA%20TV/06.jpg
http://www.marcelstvmuseum.com/USA%20TV/07.jpg
http://www.marcelstvmuseum.com/USA%20TV/08.jpg

If you can keep the line voltage at 120v 50Hz for stability. Monochrome sets from the USA will display 625 lines at 50 Hz just fine with adjustment to vertical hold/size along with a USA modulator for the tuner.

Here in the Netherlands it is no problem to make NTSC images, I have a test image generator that has all TV systems. This has an external input where you can connect a video player. I have several NTSC sources, on the photo a DVcam.

Did a bunch of other posts disappear from this thread?