[EdHolland]

Through the magic of the internet, all you have to do is scroll down a little to complete the arduous task of replacing the magic parts inside the wooden boxy thing.

Here's the furniture aspect:

   

And here is the "Magic of FM". Instructions direct the user to adjust tuning until the bars on the eye are evenly balanced. The top bar is fixed, the bottom bar (connected to the discriminator) expands from the right side as one tunes across the signal, indicating the position of the station center. On AM, the whole eye works together, opening and closing from both sides.

   

I'm demonstrating here on the 100 mc/s band, as there seems to be an interruption to the programming on Captain Armstrong's stations around 45 mc/s.