Re: [ARSCLIST] Stereo records.

[steven c <stevenc@xxxxxxxxxxxxxx>]

----- Original Message ----- 
From: "Michael Shoshani" <mshoshani@xxxxxxxxxxxxx>
> On Thursday 15 June 2006 14.14, steven c wrote:
>
> > At a guess, I'd say radio...in particular, FM radio, which was stereo
from
> > (when?).
>
> In theory, from the very beginning, although in practice from probably
1960,
> give or take three years.  Armstrong gave an FM multiplexing demonstration
in
> 1933 or 34 that mixed a signal from NBC Red Network, one from NBC Blue
> Network, a facsimile front page of The New York Times, and one other thing
I
> can't recall offhand - all on the same carrier wave.
>
Well, I can recall an early "stereo experiment" that involved a sort-of-
local station that had both AM and FM operations...and broadcast one
channel on each for a half-hour program...

Steven C. Barr