by Joe_DS »
Sat Sep 01, 2012 6:31 pm
Reading over your post again I've no idea what it is you've found. I originally thought it might be a spear tip needle, but then, it would fit in the opening of the sound box. It sounds like a small knife or some type of tool used with an attachable handle.
A tungsten tipped needle, as you noted, normally has a wire-thin tip protruding out of a rounded base. The other end of the needle will, indeed, fit a conventional Victrola needle bar, since it is about the same diameter as a steel loud tone needle.
The tip of a tungsten needle is not tapered. It is about the same diameter as the record groove and was designed to wear to conform to the V-shaped groove-bottom after a few turns of the record. Because the tip is relatively soft, compared to steel, it can be removed and used again. (The tip is then re-ground to conform to the shape of the groove.) Normally, a new old stock tungsten tipped needle will play about 40-60 sides before the tip is too short to reach the bottom of the groove.
There are collectors who insist that tungsten needles cause more wear than steel tipped ones, since they leave deposits of the tip behind as they are ground to fit the groove. Most collectors I've known have a few packs in their collections, but seldom use them.
JDS