On Monday, June 9, 2014 6:49:34 PM UTC-4, Bob wrote:   
   > Hello,   
   >   
   >   
   >   
   > My son just bought a new pair of Bose Headphones, the "SoundTrue" model.   
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   >   
   > Their .pdf manual says the Plug is 3.5 mm and also 1/8 inch.   
   >   
   > Obviously, it can't be both, as their is a "meaningful" diameter   
   >   
   > difference (0.0057) beteen these two dimensions.   
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   >   
   >   
   > I used to remember that there was always a bit of a problem, as some   
   >   
   > Plugs that mfg's used were 1/8 inch, and some were 3.0 mm (not 3.5 mm).   
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   >   
   >   
   > The reason I'm asking is that when he plugs it into our (old CRT style)   
   >   
   > Panasonic TV audio output Plug, it wiggles a lot and does not make good   
   >   
   > contact.   
   >   
   >   
   >   
   > Can someone who is a lot more knowledgeable about these kinda plugs and   
   >   
   > jacks perhaps straighten us out on all of this. (are there adapters ?)   
   >   
   >   
   >   
   > Also, the Plug seems to have 4 electrical sections.   
   >   
   > Have never seen one with more than 3.   
   >   
   > What are (each) of them for, please ?  Diagram anywhere ?   
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   >   
   > Would be most appreciative for your help.   
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   >   
   >   
   > Thank you very much,   
   >   
   > Bob   
   >   
   >   
   >   
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   I'm thinking the problem is you have a fairly worn jack in your old crt tv.    
   They fail fairly commonly.  I've had to replace a few in ipods and such.   
      
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