Looking at those old receivers really drives home how important the tuner section was at that time!
Between the tuning dial with "FM" and "STEREO" indicators, the two tuning meters, and the thumb-wheel tuning knob
, a lot of emphasis was put on the FM experience!
What is the "Tone Mode" knob about? I was thinking perhaps test tones, but don't understand what the "In" setting would be for!