good to know, but the point of this thread was IF your porta color is not producing ANY green, like gray grass that should be green or deep green that comes out blue, and the tint control does not correct it then it may be a problem with the tuning of the coil that I am mentioning.
the model I I have is the 1966 HC. tweaking that on coil made if go from a set that would produce Red and Blue hue to a set that would make red, blue AND green hues, True its a grainy pic with the large shadow mask holes but that simple tweak made all the difference.
Again it really helped checking it with the vectorscope, gives you a quick check of all 3 drives.
Did not realize I had a thread on this set already so I am linking to the orig threadviewtopic.php?f=3&t=189400&p=1596800#p1596800