Cool stuff. I just downloaded the free RPM The Turntable Tester App from the App Store. Tested it on my Technics SL 1210 Mk. V.
It tested at 33.38 rpm and 45.07 rpm. Not bad at all.
I forgot the wow and flutter measurement.
Can't test the E-Flat yet. All the equipment is unplugged while I wait for a line of heavy weather to roll through. Should be here any minute.