Garrard Zero100 SB

One of the most clever ideas to push vinyl replay to the limit - and a simple one, too. Although it has a pivot, the tonearm is in fact tangential : the headshell is gradually skewed to keep a constant angle equivalent to that of the groove.
The culprit is... the ZERO wasn't built very well and was made of fairly cheap materials for the most part. However, tweaks can make it sing and overcome most of its drawbacks. I really wonder why none of today's high-end maker hasn't yet taken up on this system...

There were quite a few versions of the ZERO 100, throughout the 1970s: from the Zero 100 (idler drive changer with variable pitch, stroboscope and white/gold looks), to the Zero 100S (as above plus variable stylus angle but not a changer), to the 100SB with a large base, to the belt&idler driven Z 2000B with an aluminium base or the belt-driven GT 55P with a Beryllium-loaded Zero tonearm (!) and many more in between. The simplest way, however, is direct tangential groove reading...