Talk:Vestax

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Technology: Straight tone arms
The article stated: "Baerwald ca. 1941 showed that the tracking error of a pivoted stylus could be minimized if the stylus is aligned such that it is parallel to the groove at two points along its curved path. As long as the stylus is set correctly there will be minimal undesired wear on a standard record for any style or shape of tonearm." This is flat-out wrong and misleading, esp. referring to Baerwald. The whole point of the alignment according to Lofgren (original researcher) and Baerwald (copycat) is to reduce the lateral tracking error and its resulting overall distortions by adjusting the tone arm geometry to match two null points on the groove area where the lateral tracking error is zero. This requires a tone arm offset and cannot be achieved with an all-straight, underhung tone arm. It has nothing to do with record wear. However, some argue that the (fluctuating) side tracking error introduced by the tone arm offset and skating force, that cannot be compensated exactly (but only approximately) by anti-skating, causes even worse distortions (and, maybe, record wear?) than the lateral tracking error. AFAIK there is no scientific proof for that. To my knowledge, the only real point for the all-straight tone arm is that by eliminating the skating force (and the anti-skating mechanism), the needle will stay in the groove more easily, esp. when scratching etc. I therefore deleted this misleading part of the section.--Mottenkiste (talk) 22:41, 17 August 2020 (UTC)