I sent of a request to Moyers for the Discs, meanwhile I did some experimenting.
I clipped in some test leads across the resistor section of the integrators, I ran the leads to the top of the chassis so I could try various values and see what happened.
Since I measured around 80-100 ohms across the circuit to start with i installed a couple 220 ohm resistors across the discs, not a dramatic difference but it did change the picture some.
To make this short(er) I got down to 33 ohms across the discs and the picture has good linearity, the controls are still near the end of their range but the picture is very watchable.
The first picture is the set with the extra resistors installed, nearly perfect picture, the horizontal linearity is very slightly off but not bad.
(the "letterbox" effect is caused by the test pattern disc and not because the picture is too short)
The second pic is the set without any resistors installed, not bad but the picture is adjusted too tall to compensate for the bad linearity, if I adjusted it to the right height the top would be squashed.
I also noticed the Vertical lock seems much more solid with the resistors in place.
If worse comes to worse I guess I can add some resistors to the circuit and let it go at that.
