NFB windings, was there a US style and UK style?
there's a general move to create something 'patentable' so that you have
a portfolio of intellectual property, regardless of whether or not it is
actually better. *But in cases where another guy's patent steps on your
design, it might be necessary to go a slightly inferior route to avoid
paying royalties. *By now all of those patents are expired.
None the less no one makes a true McIntosh circuit or transformer,
despite the superiority of the basic circuit and the transformer
design.
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