Standard 7" (Actually, it's on a 5" reel for the Uher). Pro size was 10\ufffd". But the packing, shipping (so as to ever again work) is a PITA; then too, some are heavy monsters; rilly old might even have vacuum tubes! == it's bathroom scale time.

If she's really ready to dispose, would pay decent dollars depending on year, model, condition and such. Big + if it's been fired up recently and .. it worked.)

It's a thought. Thanks.