[MrFixr55]

the wire in red and another wire go between the band switch and the push buttons to select the push buttons. the bandswitch has 3 positions, Pushbuttons (Presets) for Broadcast Band, Manual Broadcast Band and Shortwave. In addition, the manual tuning cap is a 3 section cap. However, there is no "RF amp", the usual reason for a 3 section cap. In this set, the band switch selects one or another section as the cap as an input to the mixer stage. The push buttons replace the tuning cap when the pushbuttons are selected for broadcast band.

The pushbuttons have 2 sections; the oscillator and mixer, just like the tuning cap.

Hope this helps.