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Re: [ARSCLIST] Absolute Polarity

 Richard Hess wrote:
> I'm not sure when Lipschitz's work was codified for magnetic polarity on
> the tape, but the problem arose in tape recorders far more than anywhere
> else. I recall seeing, at one time, the instruction to attach the head
> cables to the repro head in the polarity that provided the lower noise. I
> thought it was in the ReVox A77 manual, but I cannot find that now, so I
> don't know where I read it.

The seminal paper was Stodowlski's *The standardization of monaural
phase,*IEEE Transactions on Audio and Electroacoustics, Vol. AU18,
September 1970,
pp. 288-299.

In that paper he experimentally determined that incorrect polarity was
comparable to 11.5% IM distortion!


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