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   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

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   Message 52,248 of 52,877   
   Lord Valve to Phil Allison   
   Re: LTSpice, guitar amp tone control   
   25 Feb 14 07:29:50   
   
   From: detritus@ix.netcom.com   
      
   Phil Allison wrote:   
      
   > "Patrick Turner"   
   >   
   > The program does not allow to change the schematic connections from the   
   > Fender arrangement. All R and C can have values changed, and pots can either   
   > be linear, or log type B, or log type A.   
   >   
   > ** The pots fitted to 70s Twin Reverbs are variously labelled as being:   
   >   
   >  A,  L,  RA  &  J   
   >   
   > What do you take each to mean ?   
   >   
   > ...   Phil   
      
   ...   
      
   A = audio (10% at mid rotation), L = linear, RA = reverse audio,   
   and J = audio (30% at mid rotation).   
      
   LV   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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