[ARC5] dB Power Apples and dB Voltage Oranges, was Re: Selectivity Ratings...

[hwhall at compuserve.com]

>
You may be referring to the work of Fletcher and  Munson in the Bell labs in about 1938.
>
 

Yes, I believe that is exactly what it was that I was trying to recall.

Wayne
WB4OGM