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Ted Kendall:

> A straight arm on a pivot does not mimic the way a record is cut.
> All modern lathes move the cutter along a radius of the disc. A
> straight arm without offset traces a deep arc which bears little
> relation to the cutter's path, hence the need for offset.

The straight line tangential tracking arm mimics perfectly well the actual
professional cutting head.

http://www.aardvarkmastering.com/history.htm



-- 
Best regards,

Goran Finnberg
The Mastering Room AB
Goteborg
Sweden

E-mail: [log in to unmask]

Learn from the mistakes of others, you can never live long enough to
make them all yourself.    -   John Luther