Just looking at my PIV manual. The flicker fixer/scandoubler is the large grey chip in the centre of the board and just at the left end of the gap where the video connector module was.
As for KarmannSS, there is no connection that I know of between him and Berndt Binder in Germany. Binder was also known as, or associated with, Tibor Toth and Roland Geiger.
Cheers, JaX
