Thanks, gangue. The "line" connection in the phone patch is for the
telephone. I should have known that. I did not yet hook anything to
it, so have not smoked it as 120 VAC would surely have done.
Looks as if I have located a manual for the Heathkit phone patch and
will be able to get the tuner going by messing around with it. It never
had a cover, as I suspected. I still would appreciate any settings for
the AC 5.
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