[78-L] stereo, ca. 1932

[Mark Durenberger]

We were doing that in Minnesota as well, on a couple of station pairs.  One 
fun summer we did a promotion with a local drive-in theater...placed the FM 
on the theater's window-speaker feed and had folks tune their car radios to 
the AM channel.  Who knew from phase?  :-))

Still the ping-pong audio available at the time did create a buzz and was 
fun to play with.


Regards,

Mark Durenberger


----- Original Message ----- 
From: "Steven C. Barr" <stevenc at interlinks.net>
To: "78-L Mail List" <78-l at klickitat.78online.com>
Sent: Tuesday, July 07, 2009 11:28 PM
Subject: Re: [78-L] stereo, ca. 1932


> ----- Original Message ----- 
> From: "Mark Durenberger" <Mark4 at durenberger.com>
>> In 1925, radio station WBAJ in New Haven Connecticut began experimenting
>> with AM Stereo.using two frequencies fed by two microphones in the music
>> studio.
>> Also see:
>> http://www.durenberger.com/resources/documents/MULTI-CHANNELRADIO0822.pdf
>>
> I can recall (I think 1959 or 1960) hearing a local (Peoria) "stereo"
> program
> broadcast by a station which had both an AM and FM service; they broadcast
> one channel on AM and one on FM!
>
> ...stevenc
>
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