I wrote:

I have a Thorens TD-146 turntable whose motor doesn't turn. It's being
fed by a new 16 VAC/300 mA wall wart.

Is a 300ma supply enough?? That's less than 5 watts.

The folks at Thorens USA say that's correct.

The Thorens manual for the TD-146 (also TD-166 MKII) says: 16 VAC @ 140 mA
--
Len Moskowitz PDAudio, Binaural Mics, Cables, DPA, M-Audio
Core Sound http://www.stealthmicrophones.com
Teaneck, New Jersey USA http://www.core-sound.com
Tel: 201-801-0812, FAX: 201-801-0912