I finally got a service manual for the 2465A and I've tried to adjust the jutter issue to it's minimum as per the manual. It's not perfect but it is a little better now than it was before.
I'm really puzzled though.
If I bought a car which had a control for adjusting engine malfunctions I think it would be a lousy design as if the engineers couldn't get the design right. So they deliberately had to make some kind of variable compensator.
Why did Tektronix deliberately make this scope with a jitter adjustment when it might has been better to design the scope so no jitter ever occurs as with their enormous experience with previous scopes?
It seems strange to find a factory adjustment to the effect like "Adjust this control to keep the pistons from exiting your engine" in your car's owners manual. Pretty silly when a rev limiter can do this more effectively.
73s
GeoVE3GZB