I couldn't get the presets to work properly and eventually found this bad 370 pF mica cap (#10 on the schematic).
It works with the adjustable coils to set the LO oscillator frequency.
Each preset slug only covers a portion of the BC band as shown on the chassis.
Replacing it with a 390pF got the presets working, but I couldn't tune below 800 kHz on the first four presets. I bumped it up to 500 pF which go me down to 680 kHz.
I suppose I could increase the capacitance even more, but I'd like to know why the tuning range is so far off
