For those which are interested: I have posted three videos on Youtube, showing the video performance of a 32 line Nipkow disk monitor:
http://www.youtube.com/watch?v=9DFcYRxFdTI
http://www.youtube.com/watch?v=2dmY43KeBuE
http://www.youtube.com/watch?v=osF5gg6RKL4
But as one can notice I haven't found a solution for the problem of vertical interference bars, resulting from different frame rates (digital camera vs. Nipkow disk).
Kind regards,
Eckhard