This needle represents another 'first' for Astatic. A revolutionary concept in replacement needles. The un-A-Tet needle will replace all Tetrad type needles currently numbering in the hundreds. The shaft and handle are both adjustable in length. This is an all speed needle. "DS73" for 16/33/45 & 78rpm.
The difference among the various Tetrad brand needles (see related products below) mainly lies in the distance between the rubber boot and the handle, this universal replacement has an adjustable length. Start with the most common factory set length when it arrives and only adjust the length if there are playability problems.