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Hi Zeno,
In this case, the incoming 300 ohm wire from the single antenna input is simply switched between the TV and the radio. Within the radio, it looks like the antenna input is used as is for both FM and AM - i.e. without adding a ferrite loop stick. I'm not totally sure that those had been invented in 1948, but at least there is none here.
I think you are right about TV antennas back in the day also picking up FM. Indeed some TV's in 1948 (not this one) had continuous tuning that included the FM band.
Thanks for the suggestions!
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05-20-2021, 05:31 PM
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