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[TenTec] Enhanced SSB

To: <tentec@contesting.com>
Subject: [TenTec] Enhanced SSB
From: geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer)
Date: Sat Apr 19 11:50:43 2003
I suspect any early radio SSB was derived from wire line multiplex and
probably based on LC filters at some convenient frequency like 15 or 20
KHz. Western Electric had the engineering services of the brightest
minds in filters who worked at Bell Labs. 

73, Jerry, K0CQ

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