[BC] processing way back when

[Barry Mishkind]

>In a message dated 12/19/2006 ChuxGarage at aol.com writes:
>
>I have a  Western Electric brochure for their Model 110A Program  Amplifier
>which features "Automatic graduated compression of  excessive program
>peaks." It is dated 1937.  Since this is  the "110A" it makes 
>me  wonder if it was
>preceded by a Model 110?

         A good question. Some of those early
         products seem to have the "A" for
         "Audio"  ... or perhaps they were
         emulating a popular car?

         I was just informed that the Gates 250A
         (I am not aware of a previous model) included
         a tube complement of 11 tubes designated
         as "Compressor."

         The audio section showed six tubes. The RF two.