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I have read somewhere on this site that one of the members adjusts the bias on his Revox B77 at 0db and not at -20 db without any problems. Apparently the original reason for adjusting at -20 db was to avoid tape saturation on the tapes that were available 30-40 years ago.

It would be much easier all round if all the -20 db adjustments mentioned in the manual could be carried out at a higher voltage, say 775 millivolts or -6db. In this way small errors of adjustment could be avoided and it would be much easier to read the db scale.


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