My small collection...looking for insight

[Bill R]

they all show promise. Do get an isolation transformer and a variac. On the Airline, faceing the radio you will see to the left of the row of pushbuttons there is a hole. You have a button missing. That is the power button. It is likely still there just a pain to push without the button. The one on the right of the knobs is usually just decorative. Looks like the cap is missing from it. I am missing the same power button on my Airline.