[TenTec] Headset connection

Jim Brown k9yc at audiosystemsgroup.com
Tue Oct 2 14:13:28 EDT 2012

On 10/2/2012 4:35 AM, Bob McGraw - K4TAX wrote:
> In many mike elements the voltage swing from + to - is not equal. 

Actually, this is a characteristic not only of the human voice, but also 
of some acoustic musical instruments.  Back when we both were young 
pups, AM broadcasters used polarity flippers in the audio line so that 
the hottest side of the waveform was always on top.  As I recall, this 
was one of Leonard Kahn's ideas.  I remember having built a negative 
peak clipper for my rig in the late 50s.  BTW -- the reason for this is 
that distortion is produced by carrier cutoff, but not on the positive 
peak.  I'm sure you know all this stuff, Bob, but others may not.

73, Jim

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