The exact same way, a small magnet is placed on the platter which in turn is read by a magnetic switch placed on the plinth. We plan to sell these at $299.
Good Listening
Peter
Good Listening
Peter
Stingreen Yes its only a speed indicator, it does not control any associated motor drive functions. I have used quite a few of the Roadrunners in my DD tables, so when Bill closed shop I needed to find a replacement, none were available so we had to design our own. Its slightly larger than the Roadrunner the Aluminum case is 6.25 deep, 3.875 wide and 1.625 tall https://pbnaudio.com/pbn-dn308/ Good Listening Peter |