Astatic Needle N560-1d; tip 1 mil diamond LP; replacement needle for R.C.A. M70LPD, J(11:31)D, A-97D, W42MGD, 74068, 310D, 510D and 2900D. Also, N560-1S, tip 1 mil sapphire, replacement needle for R.C.A. M-70LP, A-97, W-42MGS, 74068, 310, 510 and RC-11S cartridges.  Needle N560-3D; record 78, tip 3 mil diamond for R.C.A replacement 72345, M-70D, C-102D, W-42D, 309D, 509D and RC-13D.