Todays cd recorders like the Teac LP-450 uses a single needle for all 3 speeds. In the past, a different needle was used for the 78 rpm records and the 45/331/3 records. Now, one needle is used for all three. How can this be? The 78 grooves are different from the 45's. Does the single needle do any damage to any of the records? I have read that the same needle for all records is not a good way to go. Any thoughts would be appreciated!!
rbech
rbech