Speaking of cheapening out, I have a couple of GE AM/FM sets that use a single tube as both one of the FM IF amplifiers and the FM RF amplifier. One of these chassis is part of a TV/phono/radio set that cost $500 in 1950! As I am near some strong FM stations these work ok, except for warmup drift(no AFC in 1950).
As mentioned, Zenith did make some quality sets at time(still no AFC though). However some of the lower cost Zenith sets used the 12BE6 tube for both the AM and FM converter(unlike the higher cost sets using the 12AT7). In my experience, these cheaper sets seem to have more drift issues.
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