Just Wondering ??

[davet753]

Like someone mentioned, I've seen lots of car radios with that tuning set-up but few
AA5's.

Now, many early AM/FM tube radios had this set-up for the FM and a typical tuning capacitor for the AM. In fact, I have a couple Westinghouse models where they bought an FM tuner (inductor tuned) from a company called "Standard Tuner" and incorporated it into a chassis otherwise built by Westinghouse.