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I agree, Robert, that was how I learned it at ABC-TV Network in the West 
66th Street facility.

On 2013-02-06 4:16 PM, Robert Cham wrote:
> Back in the '60s and early '70s, everywhere that I worked the drill 
> was ridges to the left.  That was  because most people are right 
> handed, and you check for the ridges with your thumb.
>
> Bob Cham
>
>
>
>> I have a feeling that all these answers have confused some of the
>> newbies who have never used a double-quarter inch patchboard -- what Lou
>> called a dual pole.  This used a pair of tip-sleeve plugs on one plastic
>> base where the two tips were the balanced-circuit conductors and the
>> sleeves were ganged together.  There was an edge with ridges on each
>> plastic block which told the operator which tip was which.  I always
>> taught that the RIDGES GO TO THE RIGHT.  (Both could go to the left but
>> it was better to have every operator do it the same way.)  A stereo
>> signal required two patch cords -- one for each channel.  So if you have
>> one cord with one end reversed, the two channels would be out of
>> relative phase.
>

-- 
Richard L. Hess                   email: [log in to unmask]
Aurora, Ontario, Canada                             647 479 2800
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