On Tue, 26 Apr 2005 17:28:53 -0400, Tony Meloche
wrote:

Eric F. Richards wrote:



In the brief period of broadcast stereo before FM multiplex stereo,
often one channel is carried on AM and the other on FM. I borrowed
one of those receivers in my college days and the AM performance was
astounding. Brenda Ann is right: Most AM receiver designs today
simply ignore fidelity as an issue.



True enough - any "American Five" of the 1950's gave better AM
performance than the AM tuner in any modern stereo receiver, for
example. But the industry as a whole just didn't invest the time or
effort in making AM as good a broadcast medium as FM, and there was
certainly no consumer demand for it, either - or at least not enough to
make a difference. When CD's came in, I was astonished at how quickly
they swept away vinyl - even quicker than the most optimistic
projections. The consumer market loved them, and that was that. AM
stereo was one of those things that simply didn't "catch on", and as I
said, largely (if not completely) because it was seen, understandably as
"reinventing the wheel".

Tony

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CD's are popular because they don't get scratched. The average person
can't tell the difference between a phone call and FM.