Wouldn't it be simpler to use a speed checker program, such as the one on the OS-9 disk? Art On Thu, Jun 19, 2014 at 1:18 AM, Kandur <k at qdv.pw> wrote: > Has anybody a 60Hz strobe disc's printable photo, > for a floppy disk drive's flywheel? > > Kandur > > -- > Coco mailing list > Coco at maltedmedia.com > http://five.pairlist.net/mailman/listinfo/coco >