The Marantz tuner with a scope is a kool component..
The advantage of a scope beside showing a visual display of a stereo input signal was in-phase, could show signal strength, multi-path and center channel tuning all simultaneously..
The 2110 was only a 3 gang tuner, the high performance one was the stepup 2130 5 gang plus quartz lock, and before that the 150 with crystal IF filters..
If you really want high performance get a 2600 receiver with a scope, 400W x 2, 5 gang tuner plus quartz lock, torroidal power supply, incredible phono peamp circuit. The 2600 actually used the Marantz pro amplifier 510M heat tunnel design.. The 510M amplifiers powered (72 of them) the Eagles tours for many, many years as their mixing engineer worked for Marantz many, years. A good condition working 2600 typically sells for about $5K..
Just my $0.05..