Total posts : 45366
Neil, you’ve fired up my old dirt imagination (not dirty imagination).
Let’s just say you loop your primary around the attic, fed from the audio source downstairs. The secondary coil would feed the Part 15 transmitter by the chimney antenna, and you’d have a wireless studio-transmitter link (STL).
After all, long runs of unbalanced audio lines are inadvisable and converting and un-converting to balanced audio line might be more trouble than driving a loop of wire with a 3-watt 8-ohm amplifier.
It certainly would be an interesting installation.